Ca' Rezzonico site was previously occupied by two houses belonging to the Bon family, one of Venice's patrician families. In 1649 the head of the family, Filippo Bon decided to build a large palazzo on the site. For this purpose he employed Baldassarre Longhena, the greatest proponent of Venetian Baroque. However, neither architect nor client was to see the completion of the Palazzo Bon: Longhena died in 1682, and Filippo Bon suffered a financial collapse.
Giambattista Rezzonico, merchant and banker, bought the palace in 1751 and appointed Giorgio Massari, one of the most highly esteemed and eclectic artists of the day, to complete the works, which proceeded rapidly and in 1756 the building was finished. While the magnificent facade on the Grand Canal and the second floor followed Longhena’s original project, Massari was responsible for the audacious inventions towards the rear of the palace: the sumptuous land-entrance, the ceremonial staircase and the unusual grandiose ballroom obtained by eliminating the second floor in this portion of the building.
As soon as the building was completed, the most important painters in Venice were called upon to decorate it. These were for example Giambattista Crosato, who painted the frescoes in the ballroom and Giambattista Tiepolo, who painted two ceilings in celebration of the marriage between Ludovico Rezzonico and Faustina Savorgnan.
The building was fully complete by 1758, when Giambattista Rezzonico’s younger brother, Carlo, Bishop of Padua, was elected Pope under the name Clement XIII: this was the peak of the family’s fortunes and the palace at San Barnaba celebrated the event in grand style. But by 1810 no family members were left. For the palace and its great heritage of art and history this was the beginning of a long, troubled period of sales and dispersions. After complex ownerships Ca' Rezzonico was sold to the Venice Town Council in 1935.
Ca' Rezzonico opened as a public museum in 1936. Today, it is one of the finest museums in Venice; this is largely because of its unique character, where objects designed for great palazzi are displayed in a palazzo, thus, the contents and the container harmonise in a way not possible in a purpose built museum. Thus, today the palazzo is more sumptuously furnished than ever before.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.