The Ca' d'Oro or Palazzo Santa Sofia is a palace on the Grand Canal in Venice, northern Italy. One of the older palaces in the city, its name means "golden house" due to the gilt and polychrome external decorations which once adorned its walls. Since 1927, it has been used as a museum, as the Galleria Giorgio Franchetti. It has long been regarded as the best surviving palazzo in Venetian Gothic architecture, retaining all the most characteristic features, despite some losses. On the facade, the loggia-like window group of closely spaced small columns, with heavy tracery with quatrefoil openings above, uses the formula from the Doge's Palace that had become iconic. There are also the byzantine-inspired decoration along the roofline, and patterning in fancy coloured stone to the flat wall surfaces. The smaller windows show a variety of forms with an ogee arch, capped with a relief ornament, and the edges and zone boundaries are marked with ropework reliefs. The third act of Amilcare Ponchielli's opera La gioconda is set in the palace. History The palace was built between 1428 and 1430 for the Contarini family, who provided Venice with eight Doges between 1043 and 1676. The architects of the Ca d'Oro were Giovanni Bon and his son Bartolomeo Bon. Following the fall of the Venetian Republic in 1797, the palace changed ownership several times. In 1846, Alessandro Trubetzkoi, purchased the palace, which was in a ruinous state, as a gift for ballet dancer Marie Taglioni. The reckless renovation of the architect resulted in his imprisonment under charges of vandalism. In the end, many of the Gothic features, including the stairway of the inner courtyard and the balconies which overlooked the courtyard, were removed. In 1894, the palace was acquired by its last owner, baron Giorgio Franchetti; throughout his lifetime, he amassed an important art collection and personally oversaw its extensive restoration, including the reconstruction of the stairway and the Cosmatesque courtyard with ancient marbles. In 1916, Franchetti bequeathed the Ca' d'Oro to the Italian State. It is now open to the public as a gallery: Galleria Giorgio Franchetti alla Ca' d'Oro. During the 2019 Venice flood, waters reached the top of the wellhead in the inner courtyard. Description The principal façade of Ca' d'Oro facing onto the Grand Canal is built in the Bons' floral Venetian Gothic style. Other nearby buildings in this style are Palazzo Barbaro and the