Janusz Radziwiłł was a notable figure in the history of the Polish-Lithuanian Commonwealth, born in 1525. He belonged to the influential Radziwiłł family, which played a significant role in the political and military affairs of the region. Janusz served as a military commander and was known for his involvement in various conflicts, including the Livonian War. In addition to his military career, Janusz Radziwiłł was also a prominent politician. He held the title of Voivode of Vilnius and was involved in the governance of the Grand Duchy of Lithuania. His contributions helped shape the political landscape of the time, reflecting the complexities of the Polish-Lithuanian Commonwealth.