On the work: "Miracles of St. Nicholas of Bari" are represented by a series of four autograph compositions by Ambrogio Lorenzetti, painted on two wooden supports, probably part of an altarpiece by S. Procolo. St. Nicholas procures the dowry to the daughters of the poor nobleman; St. Nicholas is elected bishop of Mira

Ambrogio Lorenzetti was an Italian painter. He was one of the masters of the Sienese school of the fourteenth century. The younger brother of Pietro Lorenzetti, he was active from 1319 to 1348 and distinguished himself above all for the strong allegorical and complex symbology of his mature works and for the profound humanity of the subjects represented and their relationships.

The Uffizi gallery was established in 1560 when Cosimo I Medici, the Duke of Tuscany, wanted to put together the Florentine offices and magistrates (hence the name uffici, offices) in a single building, to have a better control over them.

The work was entrusted to Giorgio Vasari and the construction started the following year. The building was designed in U-shape, consisting of a long east wing, a short corridor overlooking the Arno river and a short west wing, forming classic pattern of a Tuscan loggia. The entrance of the gallery is situated right next to Palazzo Vecchio, the house of the dukes.

The first museological exhibition was organized by Francesco I, the Grand Duke of Tuscany from 1574 to 1587. Thanks to the architect Buontalenti and the initiative of Ferdinand II, the gallery became a representation site, decorated by Antonio Tempesta, where the artworks were conserved as well as the series of the portraits of the Illustrious Men which were placed next to the portraits of the Medici family.

The overall space consists of 8000 square meters and forty-five rooms, all in the third floor, where the art collection includes some of the greatest masterpieces of Italian and European art, such as Giotto’s Maestà di Ognissanti, Simone Martini’s Trinity, the altarpieces of Duccio, Gentile da Fabriano and Mantegna, the Annunciation and Adoration of the Magi by Leonardo Da Vinci, many works of Botticelli, among them the Venus and the Spring, Raphael’s Madonna della Seggiola and Madonna of the Goldfinch, Tiitan’s Venus of Urbino, Caravaggio’s Bacchus and Rubens’s Triumph of Henry IV.

Ferdinand II wanted to add other rooms in the gallery: the room of Mathematics, a terrace and the armory. Between 1696 and 1699 the Grand Duke Cosimo III ordered the decoration of the corridor overlooking the Arno river with frescoes of religious subjects and he sent to Florence some of the most famous examples of ancient statues conserved in Villa Medici of Rome. In this occasion was built the Sala della Niobe, where the ancient sculptures were placed. Other self-portraits of ancient and contemporary painters were acquired and placed in the Vasari Corridor. Cardinal Leopoldo de Medici added to Uffizi his collection of graphic art and created the cabinet nowadays known as the department of drawings and prints.

After the extinction of the house of Medici due to lack of heirs, in 1737 Anna Maria Luisa de Medici donated the treasures of the Uffizi gallery to the city of Florence, so that the collection would always stay where it was created. In 1769 the Grand Duke Pietro Leopoldo opens the gallery to the public. In the 1770s’ Uffizi was seen as a advantaged laboratory for the studies of art history and for preparation of art, thanks to the work of Luigi di Lanzi and Giuseppe Pelli Bencivenni.

During the Kingdom of Italy, the renaissance statues were moved to the new museum of Bargello and the gallery was gradually taking the function of Pinacoteca. More and more visitors came, and the magistrates were transformed to public archives.

In 1900 the gallery acquired the painting collection of the Arcispedale of Santa Maria Nuova, including artworks such as the Portinari Triptych of Hugo van der Goes, from the church of Sant’Edigio. In the beginning of the 20th century the gallery reinforced the collection by acquiring many works of the 14th and 15th centuries from churches and other religious institutes, which were still absent in the museums historical framework.

The first renovation of Uffizi’s rooms dates back to 1956, when the architects Giovanni Michelucci, Carlo Scarpa and Ignazio Gardella renewed the rooms with light tones of colors that highlight the wooden ceiling. In 1969 the gallery purchased the collection of Contini Bonacossi including Giovanni Bellini’s St. Jerome, Cima da Conegliano’s St. Jerome, Francesco Francia’s St. Francis, Savoldo’s Mary Magdalene, Tintoretto’s canvases and Velazquez’s Waterseller of Seville and Portrait of Philip IV of Spain.

In 2006 the Uffizi galleries started the architectural restoration work, adjustments of the implantation and new layouts for the rooms. The museum remained always open and with the reform of the Italian museum system in 2014 the museums of Palazzo Pitti and Boboli Gardens were joined to the Uffizi.