"Bogusław Radziwiłł (Lithuanian: Boguslavas Radvila; Belarusian: Багуслаў Радзівіл; 3 May 1620 – 31 December 1669) was a Polish princely magnate and a member of the Polish-Lithuanian szlachta, or nobility. He was of the Radziwiłł magnate family. By birth he was an Imperial Prince of the Holy Roman Empire. He was a descendant of the famous knight Zawisza Czarny." - (en.wikipedia.org 28.12.2020)
