space Studies
italian
english
space Sources Dates Indices Topics1 Topics2 Reference Texts


WordsinVERNACULARtexts


WordsinLATINtexts


A-B


C-D


E-F


G-H


I-J


K-L


M-N


O-P


Q-R


S-T

U-V


W-X


Y-Z


0-9


OTHER


Listoforiginaltitles

1-150 A151-300  A301-450  A451-600  A601-750  A751-900  A901-1050  A1051-1200  A1201-1350  A1351-1500  A1501-1533 


Previous
si
Next
 

sort
Document

sort
Date

sorted
Summary

sort
Context of query
o0202001.174c 1428/9 febbraio 14 Acceptance of a larger shipment of broad bricks than agreed upon and cancellation of the advance received. Text: quam fecerit et si pur faceret non
o0202001.174c 1428/9 febbraio 14 Acceptance of a larger shipment of broad bricks than agreed upon and cancellation of the advance received. Text: vendendi alteri persone si Opera nollet quoniam
o0202001.102a 1428/9 gennaio 9 Acceptance of legal counsel given on house of the Cortigiani. Text: de qua queritur, si de domo contenderetur,
o0202001.102a 1428/9 gennaio 9 Acceptance of legal counsel given on house of the Cortigiani. Text: habet. Nec obstat si dicatur pro parte
o0202001.102a 1428/9 gennaio 9 Acceptance of legal counsel given on house of the Cortigiani. Text: eidem; secundo quia, si satis non esset
o0202001.148vb 1431 settembre 25 Acceptance of the petition presented on account of some debtors for a large sum, which was unknown to the Opera, allowing for payment in annual installments. Text: satisfiat; et quod si sic predictum offitium
o0202001.148vb 1431 settembre 25 Acceptance of the petition presented on account of some debtors for a large sum, which was unknown to the Opera, allowing for payment in annual installments. Text: predictum; et hoc si et in casu
o0202001.148vb 1431 settembre 25 Acceptance of the petition presented on account of some debtors for a large sum, which was unknown to the Opera, allowing for payment in annual installments. Text: presenti deliberatione ac si nunc eorum nomina
o0202001.033vc 1426 maggio 31 Acquittal and new term to masters for completion of the work at the (castle) of Lastra, under penalty of fine. Text: hoc excepto quod si per totam diem
o0202001.052a 1426/7 febbraio 11 Acquittal from penalty with restitution of deposit. Text: proxime futuros et si infra dictos duos
o0202001.232f 1435 aprile 29 Acquittal from the accusation made to raftsmen about damages caused to a weir by the passage of lumber. Text: ad civitatem Florentie si via foderandi tali
o0202001.231ve 1435 aprile 27 Acquittal of a treasurer of the forced loans for the debt denounced by the auditors regarding the 6 denari per lira due from orphans and widows, considered exempt. Text: hac modificatione quod, si ullo umquam tempore
o0202001.231va 1435 aprile 26 Acquittal of a treasurer of the forced loans from the payment of 6 denari per lira. Text: servandis deliberaverunt quod, si et in quantum
o0202001.035vb 1426 giugno 13 Acquittal to the Commune of Corniolo for lumber drawn from the forest and letter about the payment for the same. Text: mandato Decem Balie, si et in quantum
o0201073.017va 1418 maggio 14 Additional guaranty for a debt collector under arrest. Text: per operarios suprascriptos si dictus Lucas commisiset
o0202001.130a 1430 settembre 15 Advance on the wages of a stonecutter given to his mother. Text: heredum; et hoc si et in casu
o0201074.009va 1418 agosto 19 Announcement of competition for the model of the cupola, that is to say for its armature, scaffolding and other things concerning construction. Text: dicto tempore dicat si vellet aliquid dicere
o0202001.088vg 1428 agosto 5 Annulment of salary allowance of the treasurer of the forced loans. Text: proxime preteriti 1428, si et in quantum
o0202001.088vg 1428 agosto 5 Annulment of salary allowance of the treasurer of the forced loans. Text: viginti pro anno, si et in quantum
o0202001.122vb 1429/30 febbraio 10 Apportionment of debt between two (kilnmen) and deduction of part of the same against supply of broad bricks, including the expenditures for the carters. Text: quam veteris conducendis, si et in quantum
o0201078.014va 1420/1 marzo 17 Approval of a guarantor. Text: Dominici Arestacci fornaciarii, si et in quantum
o0202001.121f 1429/30 gennaio 21 Approval of a guarantor. Text: Iacobi Luti chalzolarium, si et in casu
o0202001.101vd 1428/9 febbraio 23 Approval of guarantor and term for restitution for the amount of the damages of a theft. Text: martii proxime futuri, si et in quantum
o0201078.031c 1421 maggio 24 Approval of guarantors for contract for broad bricks. Text: infrascriptos, deliberaverunt quod, si et in quantum
o0201077.021vd 1419/20 febbraio 23 Approval of previous resolution for the purchase of a house from the hospital of Santa Maria Nuova. Text: me notarium infrascriptum si quam incursi forent
o0202001.244a 1435 novembre 26 Approval of the report made by some citizens nominated supervisors over the planning of the choir and high altar. Text: però ci pare si facci due filari
o0202001.244a 1435 novembre 26 Approval of the report made by some citizens nominated supervisors over the planning of the choir and high altar. Text: che l 'altare si faccia di braccia
o0202001.244a 1435 novembre 26 Approval of the report made by some citizens nominated supervisors over the planning of the choir and high altar. Text: modo non vi si cape, il perché
o0202001.244a 1435 novembre 26 Approval of the report made by some citizens nominated supervisors over the planning of the choir and high altar. Text: cape, il perché si conchiude che dove
o0202001.244a 1435 novembre 26 Approval of the report made by some citizens nominated supervisors over the planning of the choir and high altar. Text: legnale, che se si vedessi essere meglio
o0202001.244a 1435 novembre 26 Approval of the report made by some citizens nominated supervisors over the planning of the choir and high altar. Text: o circha, che si possa sanza avere
o0202001.244a 1435 novembre 26 Approval of the report made by some citizens nominated supervisors over the planning of the choir and high altar. Text: che di legname si facci sopra 'l
o0202001.244a 1435 novembre 26 Approval of the report made by some citizens nominated supervisors over the planning of the choir and high altar. Text: e la pietra si facci, siché avendosi
o0202001.244a 1435 novembre 26 Approval of the report made by some citizens nominated supervisors over the planning of the choir and high altar. Text: mutare la pietra si porti ove si
o0202001.244a 1435 novembre 26 Approval of the report made by some citizens nominated supervisors over the planning of the choir and high altar. Text: si porti ove si vedrà essere il
o0202001.244a 1435 novembre 26 Approval of the report made by some citizens nominated supervisors over the planning of the choir and high altar. Text: quando colla sperienza si fia provato, si
o0202001.244a 1435 novembre 26 Approval of the report made by some citizens nominated supervisors over the planning of the choir and high altar. Text: si fia provato, si potrà fermare apunto
o0202001.244a 1435 novembre 26 Approval of the report made by some citizens nominated supervisors over the planning of the choir and high altar. Text: fermare apunto dove si vedrà essere il
o0202001.244a 1435 novembre 26 Approval of the report made by some citizens nominated supervisors over the planning of the choir and high altar. Text: e il coro si facci dove e
o0202001.244a 1435 novembre 26 Approval of the report made by some citizens nominated supervisors over the planning of the choir and high altar. Text: pilastri, e dipoi si vedrà, se fia
o0202001.107vc 1429 giugno 3 Arrest of coal maker and his consignment to the officials of the Wool Guild. Text: et non licentietur, si aliud de novo
o0202001.150c 1431 ottobre 26 Assignment of a house to a canon and of part of his previous house to the baptizer at San Giovanni. Text: Lane civitatis Florentie, si et in quantum
o0202001.150c 1431 ottobre 26 Assignment of a house to a canon and of part of his previous house to the baptizer at San Giovanni. Text: prefata Opera, et si et in quantum
o0202001.131vo 1430 settembre 20 Assignment of a house to a canon. Text: persolvenda; et hoc si et in quantum
o0201075.009a 1418/9 febbraio 14 Assignment of a house to a chaplain. Text: domini Antonii, possit si voluerit dictus ser
o0201077.016c 1419/20 febbraio 7 Assignment of a house to a chaplain. Text: propterea taxatum fuit si taxata reperietur.
o0202001.090vd 1428 agosto 31 Assignment of a house to a chaplain. Text: et canonicus florentinus, si et in quantum
o0202001.090vi 1428 agosto 31 Assignment of a house to a chaplain. Text: dicte Opere, et si et in casu
o0202001.100vf 1428/9 gennaio 28 Assignment of a house to a chaplain. Text: de valle Seve, si et in quantum
o0201073.008e 1418 aprile 30 Assignment of a house with agreement that its tax be paid. Text: tassam, ita quod si dictus dominus Salutatus
o0201073.008e 1418 aprile 30 Assignment of a house with agreement that its tax be paid. Text: solveret habeat domum, si vero prius solverit
o0202001.152c 1431 dicembre 27 Assignment of half of a house to the provost of the chapter. Text: centinario; et hoc si et in casu
o0201076.018va 1419 ottobre 7 Assignment of house to canon with agreement to pay the tax. Text: hoc tamen quod si dominus Marcus de
o0201076.012vf 1419 settembre 4 Assignment of house to canon. Text: habitatione, assignetur sibi si ipsam vult; et
o0201076.012vf 1419 settembre 4 Assignment of house to canon. Text: antiquiori canonico, et si non vult eam
o0201076.012vf 1419 settembre 4 Assignment of house to canon. Text: assignaverunt secundo, et si non vult secundus
o0202001.002va 1425 luglio 3 Assignment of house to chaplain and order to evacuate another house inhabited by him. Text: ad presens exivit si et in quantum
o0201079.019c 1421 agosto 22 Assignment of house to chaplain who already lives there, since the duration of the previous assignment to an absent chaplain has elapsed. Text: Item quod, si et in quantum
o0202001.004va 1425 luglio 30 Assignment of house to chaplain with obligation of evacuate it in accordance with the will of the Opera. Text: hac condictione quod si prefati operarii tam
o0202001.103vd 1429 aprile 5 Assignment of house to chaplain, pending approval of the Wool Guild. Text: eorum offitium concessam, si et in casu
o0202001.095b 1428 novembre 23 Assignment of house to chaplains. Text: dicte Opere et si et in quantum
o0202001.095c 1428 novembre 23 Assignment of house to chaplains. Text: operariorum dicte Opere, si et in quantum
o0202001.086vb 1428 luglio 2 Assignment of house to the chaplain of the cardinal of San Marcello, upon promise of fixed residence. Text: Et hec fecerunt si et in quantum
o0202001.080vf 1428 marzo 29 Assignment of houses to canons. Text: dominus Michus, et si aliquid residuum solvere
o0202001.192f 1432 dicembre 9 Assignment of lodgings to the canons. Text: hoc salvo quod si dominus Robertus de
o0202001.258c 1426 novembre 14 Audit of accounts of master masons for work at the castle of Lastra. Text: s 'anullono perché si ripiglia detta misura
o0202001.258c 1426 novembre 14 Audit of accounts of master masons for work at the castle of Lastra. Text: otto p. non si truovano chi l
o0202001.258c 1426 novembre 14 Audit of accounts of master masons for work at the castle of Lastra. Text: 'esse lire 938 si truova e nonn
o0202001.093a 1428 ottobre 25 Audit of the account of the treasurer of the forced loans. Text: mensis novembris, et si infra dictum terminum
o0201073.011d 1418 maggio 24 Audit of the accounts of the notary of testaments. Text: etc.; et quod si aliquis interim veniet
o0201073.011d 1418 maggio 24 Audit of the accounts of the notary of testaments. Text: camerario etc.; et si dictus ser Laurentius
o0202001.074f 1427 dicembre 23 Audit of the accounts of the treasurers of the forced loans. Text: et quampluribus personis si gratias non habuissent
o0202001.085a 1428 maggio 26 Audit of the forced loans with obligation to the treasurer and (accountant) to exact unpaid sums from debtors, under penalty of being debited with same amount. Text: eorum offitio et si reperierint aliquam quantitatem
o0202001.085a 1428 maggio 26 Audit of the forced loans with obligation to the treasurer and (accountant) to exact unpaid sums from debtors, under penalty of being debited with same amount. Text: non solvissent et si fuerit negligens infra
o0202001.085a 1428 maggio 26 Audit of the forced loans with obligation to the treasurer and (accountant) to exact unpaid sums from debtors, under penalty of being debited with same amount. Text: tantum sufficiente et si non solverent provisor
o0202001.122vd 1429/30 febbraio 14 Authority for the contract of the paving in the street between the bell tower and the Tinucci house at set price. Text: fecerit intelligatur ac si factum esset per
o0202001.248a 1435/6 febbraio 3 Authority for the government and administration of the Opera to two wardens for the duration of the journey of their colleagues to Vicopisano and to Pisa for the fortifications. Text: et sit ac si factum foret per
o0201079.029a 1421 ottobre 3 Authority to a warden to cancel a contract for sandstone blocks for the chain of the main cupola. Text: faciendi et etiam si sibi videbitur utile
o0202001.103va 1429 marzo 30 Authority to Brunelleschi and the master builder for the cloister of the canons and clerics. Text: factum et ac si esset factum et
o0202001.170c 1425/6 gennaio 24 Authority to consuls and wardens to build a stable for a canon. Text: viginti, et quod si in dicto stabulo
o0202001.202vg 1433 luglio 10 Authority to contract out the organ loft of the new sacristy at price not higher than the other. Text: et sit ac si factum esset per
o0202001.239i 1435 agosto 13 Authority to the administrator and notary to define the terms of arrest in absence of the wardens. Text: Opere; et hoc si et in quantum
o0202001.201e 1433 giugno 22 Authority to the administrator and to the master builder to contract out marble at fixed price with provision for supplement for transport by land in case of need. Text: cum pacto quod si operarii vellent conducere
o0202001.205vd 1433 settembre 28 Authority to the administrator and to the notary to review the demand of payment made to a debtor. Text: nec ne; et si reperierint ipsam tenuisse
o0201070.001d 1416 dicembre 30 Authority to the administrator to prepare the place of the books of the new gabelles and of the forced loans. Text: et propterea expendendi si et quantum viderit
o0202001.107c 1429 maggio 27 Authority to the master builder for sale of objects coming from demolished house. Text: et sit ac (si) factum esset per
o0202001.118va 1429 dicembre 10 Authority to the master builder for sale of stones and pebbles. Text: pro maiori pretio si poterit, cuicumque persone
o0202001.080a 1427/8 marzo 16 Authority to the master builder for the dispatch of workers to Trassinaia at his discretion. Text: intelligatur factum ac si esset deliberatum per
o0202001.254d 1436 maggio 30 Authority to the master builder for the removal of the tabernacle of the banner of Saint Zenobius. Text: drappi Sancti Zenobii, si et in quantum
o0202001.084i 1428 maggio 14 Authority to the master builder for work on roofs and sinks in the houses of canons, chaplains and clerics. Text: et sit ac si factum esset per
o0202001.062ve 1427 luglio 3 Authority to the master builder to assign work to the masters and dismiss those least qualified for the tasks in hand. Text: Opera utilius, et si prefati magistri non
o0202001.243e 1435 novembre 15 Authority to the sacristy officials and to Brunelleschi and Ghiberti to order altars for the new tribunes. Text: et sit ac si factum esset per
o0202001.251vc 1436 marzo 26 Authority to the wardens concerning the validity of the resolutions made during the trip of their colleagues to Pisa and Vico. Text: et sint ac si deliberata forent per
o0202001.175b 1429 maggio 12 Authority to the wardens for the demolition of houses near those bought from the Visdomini, at the entrance of the Opera. Text: et sit ac (si) factum esset per
o0202001.174vc 1428/9 febbraio 25 Authority to the wardens of make repairs to the houses of the canons and chaplains. Text: quantitatem, et minorem, si eis videbitur et
o0202001.255vd 1436 giugno 27 Authority to the wardens sent to Vicopisano and Pisa. Text: et sit ac si factum esset per
o0202001.239vh 1435 agosto 19 Authority to the wardens to attend the ordination of 25 choir boys and their master in accordance with the will of Pope Eugenius IV. Text: iunii. Et hoc si et in quantum
o0202001.064a 1427 agosto 5 Authority to two wardens for repairs to the houses of the canons and of the chaplains. Text: et sit ac si factum esset per
o0201075.017a 1419 aprile 6 Authority to two wardens to oversee the work for the Pope's residence with the exception of the stairs. Text: alios quoscumque, ac si facta, provisa, deliberata,
o0202001.225g 1434 dicembre 15 Authority to wall up the gate to which lumber is brought. Text: et ponendi marmore, si et in casu
o0202001.026c 1425/6 marzo 21 Authority to warden for cancellation of a debt after obtaining a greater sum from the pawns sold. Text: videndum et providendum si Loysius ser Filippi
o0202001.026c 1425/6 marzo 21 Authority to warden for cancellation of a debt after obtaining a greater sum from the pawns sold. Text: ipse Loysius et si verum est quod
o0202001.026c 1425/6 marzo 21 Authority to warden for cancellation of a debt after obtaining a greater sum from the pawns sold. Text: ac tenetur et si reperit sic fuisse
o0202001.082c 1428 aprile 30 Authority to warden for the purchase of a house. Text: tantum dicte Opere, si et in quantum
o0202001.056vf 1427 aprile 8 Authority to warden to examine the petty expenses and authorize the allocation of funds for them. Text: sint stantiate ac si per dictum offitium
o0202001.027vd 1426 aprile 21 Authority to wardens for the work at Lastra and Malmantile; sentence and fine of defaulting master; acquittal and new contract for the work. Text: imminere hiis temporibus, si cito non daretur
o0202001.027vd 1426 aprile 21 Authority to wardens for the work at Lastra and Malmantile; sentence and fine of defaulting master; acquittal and new contract for the work. Text: hac modificatione quod si et in quantum
o0202001.027vd 1426 aprile 21 Authority to wardens for the work at Lastra and Malmantile; sentence and fine of defaulting master; acquittal and new contract for the work. Text: proxime futuri, et si et in quantum
o0202001.027vd 1426 aprile 21 Authority to wardens for the work at Lastra and Malmantile; sentence and fine of defaulting master; acquittal and new contract for the work. Text: hoc excepto quod si propter pluviam aut
o0202001.100b 1428/9 gennaio 28 Authority to wardens to construct a single entryway to the houses of the canons and chaplains. Text: et sit ac si per offitium totum
o0202001.170a 1425 luglio 6 Authorization for a secret allocation of payment to an informer. Text: florenorum auri centum, si et in quantum
o0202001.170a 1425 luglio 6 Authorization for a secret allocation of payment to an informer. Text: et habeatur ac si factum et stantiatum
o0201074.023d 1418 ottobre 12 Authorization to a competitor for the model (of the cupola) either to work in the Opera or else be reimbursed for his expenditures. Text: dicto Opere et si laborat solvatur sibi;
o0201074.023d 1418 ottobre 12 Authorization to a competitor for the model (of the cupola) either to work in the Opera or else be reimbursed for his expenditures. Text: laborat solvatur sibi; si vero laborare non
o0202001.236c 1435 giugno 15 Authorization to accept from the heirs of Niccolò from Uzzano seven large logs cut for the Sapienza. Text: Opere; et hoc si et in quantum
o0201076.009b 1419 agosto 7 Authorization to clear out earth close to the foundations. Text: et exteriori et si et ubi et
o0201074.005a 1418 agosto 4 Authorization to contract out broad bricks. Text: ordinatam etc.; et si dictus Pardus acceptat
o0201077.047vd 1420 giugno 28 Authorization to contract out supply of stones with possibility of revocation. Text: cum condictione quod si circa predicta se
o0202001.135vd 1430/1 gennaio 19 Authorization to contract out up to 300.000 broad bricks for the cupola. Text: consuetis et minoribus si possibile est et
o0202001.135vd 1430/1 gennaio 19 Authorization to contract out up to 300.000 broad bricks for the cupola. Text: et sit ac si factum esset per
o0202001.077vf 1427/8 febbraio 9 Authorization to contract out white marble for external ribs of the cupola with advance on payment to be discounted with supply of broad bricks. Text: cum pacto quod si schafraiuoli apponerent maius
o0202001.077vf 1427/8 febbraio 9 Authorization to contract out white marble for external ribs of the cupola with advance on payment to be discounted with supply of broad bricks. Text: cum pacto quod, si operarii vellent conduci
o0202001.079vb 1427/8 marzo 16 Authorization to contract out 50.000 broad bricks. Text: et sit ac (si) factum esset per
o0202001.155a 1431/2 febbraio 22 Authorization to convey mortar, with the agreement to discount from its price the credit of the Opera for the construction of the Sapienza. Text: modio; et hoc si et in casu
o0201077.046vd 1420 giugno 28 Authorization to cut half of the lumber of the forest and concession of a part of the same to Simone Strozzi for private use. Text: commiserunt eius discretioni, si sibi necessarium vel
o0202001.149vh 1431 ottobre 4 Authorization to cut lumber to sell to a private person. Text: ab Opere emere, si et in casu
o0201075.006vf 1418/9 febbraio 6 Authorization to deduct sum already received from salary. Text: unum auri; et si defecerit in aliqua
o0201077.012vc 1419/20 gennaio 29 Authorization to demand payment of guarantor for payment not made. Text: Gherardum eius filium, si principalis vel eius
o0202001.116vd 1429 novembre 4 Authorization to each warden to give leave to masters for 5 days and dismissal of the scribe for having violated the regulations. Text: non viderit, et si contrafaceret ipso facto
o0201078.041va 1421 giugno 13 Authorization to give advance payment for a lumber contract. Text: conducta lignaminis predicti, si et in quantum
o0202001.093d 1428 ottobre 25 Authorization to kilnman to convey quarry stone mortar. Text: Iannis eius fideiussor, si et in quantum
o0202001.234vi 1435 maggio 24 Authorization to lend a rope to the abbot of Vallombrosa with agreement that it not leave the city. Text: abbati Vallis Umbrose, si et in quantum
o0202001.233vl 1435 maggio 12 Authorization to lend logs to the confraternity of the Santo Spirito for their feast with promise to return them whole. Text: societatis, et hoc si et in quantum
o0201076.019va 1419 ottobre 11 Authorization to make an entrance door to the courtyard of San Niccolò in Santa Maria Novella. Text: introytu dicti cortilis si prout et sicut
o0201077.041b 1420 maggio 18 Authorization to make offerings for the feast of Saint Zenobius. Text: Item quod, si et in quantum
o0202001.065vb 1427 agosto 20 Authorization to moneylender to pay his debt with the Opera through supply of mortar coming from the quarry of a debtor of his. Text: maiorem quantitatem calcis, si caputmagister Opere videbitur
o0202001.200va 1433 giugno 15 Authorization to pay for spades acquired after consignment. Text: libra; et hoc si et in quantum
o0202001.116c 1429 novembre 4 Authorization to pay master for work done at Malmantile, granting him the completion of the work. Text: etiam deliberaverunt quod si eorum offitium non
o0202001.116c 1429 novembre 4 Authorization to pay master for work done at Malmantile, granting him the completion of the work. Text: etiam deliberaverunt quod si ullo umquam tempore
o0202001.131vc 1430 settembre 18 Authorization to pay the wages of the late administrator of the quarry to his widow. Text: Andree; et hoc si et in quantum
o0201077.017vb 1419/20 febbraio 7 Authorization to poor debtors and charitable institutions to discount payment for forced loans from that for property gabelle. Text: seu non solverent, si volunt solvere cum
o0201077.017vb 1419/20 febbraio 7 Authorization to poor debtors and charitable institutions to discount payment for forced loans from that for property gabelle. Text: recipiatur ab eis; si autem sine pena
o0202001.201g 1433 giugno 25 Authorization to reduce the oculus of the lantern. Text: erit tutius quam si foret maius, ac
o0202001.032vb 1426 maggio 15 Authorization to repair the roof of the square of the Signori at the expense of the Opera. Text: quod quidem acconcimen si non fieret veniret
o0201075.031vd 1419 giugno 2 Authorization to sell logs of the forest. Text: dicti Operis perquirat si per dictos operarios
o0201075.031vd 1419 giugno 2 Authorization to sell logs of the forest. Text: quanto pretio; et si invenit quod alias
o0201077.042e 1420 maggio 29 Authorization to sell lumber without leaving the possibility of choice to the buyer. Text: fodis aut duo si sibi placebit lignaminis
o0201073b.004c 1418 aprile 23 Authorization to sell pawns. Text: et observetur prout si factum esset per
o0201073b.004c 1418 aprile 23 Authorization to sell pawns. Text: soldos decem f.p.; si vero non excederet
o0202001.148e 1431 agosto 28 Authorization to sell pawns. Text: maius pretium; et si offerentes darent de
top of page Return Help Contact home
© 2015 Opera di Santa Maria del Fiore