The Beloselsky-Belozersky palace belonged to the Princes Beloselskiy, a family who claimed descent from Yuri Dolgorukiy, the founder of Moscow. Their first palace was built on the same site by the Fontanka River in 1747, but it was a much more modest affair. The family's fortunes increased thanks to the close relationship between Prince Alexander Mikhailovich Beloselskiy-Belozerskiy and Emperor Paul I, and through marriage to two heiresses to Urals mining fortunes. It was one of those heiresses, the widowed Princess Elena Pavlovna Beloselskaya-Belozerskaya, who commissioned the present palace, petitioning Emperor Nicholas I to allow his court architect, Andrey Stackensneider, to design the building (his only civil commission in the city).
The palace was built 1847-1848, and became renowned for the lavish parties thrown there by Elena Pavlovna. A few decades later, however, the family found the palace too expensive to maintain, and it was sold to Grand Duke Sergey Alexandrovich, brother of Emperor Alexander III, in 1884. He had part of the interiors redesigned in 1888, and in 1897 the facades were restored and first painted in the deep pink that can be seen today.
Nationalised after the October Revolution, the Beloselskiy-Belozerskiy Palace became the headquarters of the Regional Committee of the Communist Party for the centre of Leningrad. In this role, its historic interiors were carefully maintained during the 20th century, despite significant damage in the Second World War, and the original rococo decorations have largely survived intact. The building is now home to a Municipal Cultural Centre (along with several smaller institutions), and hosts regular concerts of chamber music as well as offering occasional guided tours of the state rooms (three or four times per month or by appointment).
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.