The Portrait of the Four Tetrarchs is a porphyry sculpture group of four Roman emperors dating from around 300 AD. The sculptural group has been fixed to a corner of the façade of St Mark's Basilica in Venice, Italy since the Middle Ages. It probably originally formed part of the decorations of the Philadelphion in Constantinople, and was removed to Venice in 1204 or soon after.
Doge’s Palace is a palace built in Venetian Gothic style, and one of the main landmarks of the city of Venice in northern Italy. The palace was the residence of the Doge of Venice, the supreme authority of the former Venetian Republic. It was founded in 1340, and extended and modified in the following centuries. It became a museum in 1923, and is one of the 11 museums run by the Fondazione Musei Civici di Venezia.
