Works lasted for 53 years, and the castle was not completed until 1633, by Marcin Krasicki, son of Stanisław and Voivode of Podolia, who in the meantime had changed his name.

However, Marcin Krasicki, who was regarded as one of the most important promoter of arts in the country, turned the fortress into a sophisticated residence (palazzo in fortezza), under supervision of Italian architect, Galleazzo Appiani.

Built as a square, with walls representing all four quarters of the globe, at the corners there are four oval-shaped towers: Divine (Boska), Papal (Papieska), Royal (Krolewska), and Noble (Szlachecka).

[3] The rectangular, spacious court is surrounded to the east and north by living quarters, and to the south and west by walls, adorned with attics.

Among other interesting things, there are richly sculpted portals, loggias, arcades, and unique sgraffito wall decorations, whose total area is about 7000 square meters.

The sgraffito depicted Roman emperors, Polish kings, members of the Krasicki family, hunting scenes, and saints of the Roman-Catholic Church.

[3] Unfortunately, most of the interior design has been destroyed, mostly by the Red Army soldiers, who were stationed there from October 1939 to June 1941 (see: Polish September Campaign, Operation Barbarossa).

Finally, in 1835, the castle was purchased by prince Leon Sapieha, and his family owned the complex until 1944 (with the exception of the Soviet occupation in 1939–1941), when Communist government of Poland nationalized it.

In late 1941, after German invasion of Soviet Union, Andrzej Sapieha returned to the castle, which had been used as barracks for soldiers of the Red Army (see Molotov Line).

After the collapse of the Communist system, the castle found a new owner, Warsaw's Industrial Development Agency (Agencja Rozwoju Przemysłu S.A.), which has carried out extensive renovation of the complex.