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:From its origin as a small stronghold built by the ancient Illyrian tribe Dalmatae, becoming a royal castle that was the seat of many Croatian kings, to its final development as a large fortress during the Ottoman wars in Europe, Klis Fortress has guarded the frontier, being lost and re-conquered several times. Due to its location on a pass that separates the mountains Mosor and Kozjak, the fortress served as a major source of defense in Dalmatia, especially against the Ottoman advance, and has been a key crossroad between the Mediterranean belt and the Balkan rear.
Since Duke Mislav of the Duchy of Croatia made Klis Fortress the seat of his throne in the middle of the 9th century, the fortress served as the seat of many Croatia"s rulers. The reign of his successor, Duke Trpimir I, the founder of the Croatian royal House of Trpimirović, is significant for spreading Christianity in the Duchy of Croatia.