The Padua Baptistery, dedicated to St. John the Baptist, is a religious building found on the Piazza del Duomo next to the cathedral in Padua. Preserved inside is one of the most important fresco cycles of the 14th century, a masterpiece by Giusto de Menabuoi.
The construction of the baptistery began in the 12th century, probably on top of an existing structure; it underwent various reworkings in the following century, and was consecrated by Guido, patriarch of Grado, in 1281. Between 1370 and 1379 it was restored and adapted as a mausoleum for prince Francesco il Vecchio da Carrara and his wife, Fina Buzzaccarini. The latter oversaw the decorative work, entrusting it to Giusto de' Menabuoi (whose burial site was later found outside the building). With the fall of the House of Da Carrara in 1405, Venetian soldiers demolished the grand burial monuments and covered the numerous emblems of Francesco il Vecchio with green paint. After various partial restorations in the 20th century, the work is currently awaiting an important full restoration.
The fresco cycle decorating the walls, painted between 1375 and 1376 by Giusto de' Menabuoi, is considered a masterpiece. With respect to previous works, Padua must have been struck by the Romanesque and Byzantine rigidity, as can be seen in the Paradise of the baptistery's cupola: the scene is organized around a , around which turns a hypnotic wheel with multi-layered spokes made of angels and saints, whose golden halos as seen from below seem to be the work of a magnificent goldsmith. At the center of the Paradise is also the Mother of God. The paintings that cover the walls show scenes from the life of St. John the Baptist (to the left of the entrance), Mary, and Jesus.
On the walls adjacent to the altar are represented the Crucifixion and the Descent of the Holy Spirit (frescoed on the cupola of the altar), and a large polyptych, also by Guisto de' Menabuoi, sits on the altar itself. Painted on the walls surrounding the altar, in the apse, are monstrous figures and images of the Book of Revelation.