Other owners of the town also expanded the small castle, the most notable of them being Prince Michał Gliński, Mikołaj Radziwiłł and Zygmunt August, the future king of Poland.
There are a lot of original monuments: Mikołaj Szydłowiecki's gravestone (B.Berecci), gravestone of Mikołaj Radziwiłł and his wife Maria née Gawdzicka and was inspired by sleeping Ariadna's (G.Monaldi).
Janusz Radziwiłł | Mikołaj Radziwiłł | Michał Kazimierz "Rybeńko" Radziwiłł | Janusz Radziwiłł (1612-1655) | Radziwiłł | Mikołaj "the Black" Radziwiłł | Mikołaj Rej | Mikołaj Krzysztof "the Orphan" Radziwiłł | Michał Kazimierz Radziwiłł | Dominik Hieronim Radziwiłł | Antoni Radziwiłł | Mikołaj Sęp Szarzyński | Mikołaj Sapieha | Mikołaj Radziwiłł (1470-1521) | Mikołaj Firlej | Michał Gedeon Radziwiłł | Maciej Radziwiłł | Karol Stanisław "Panie Kochanku" Radziwiłł | Janusz Radziwiłł (1612–1655) | Hieronim Wincenty Radziwiłł | Franciszek Pius Radziwiłł | Bogusław Radziwiłł |
His father Hieronim Mikołaj Radziwiłł was deported to a Gulag during the Soviet occupation of Poland and died on 6 April 1945.