Zygmunt Karol Radziwill (Lithuanian: Zigmuntas Karolis Radvila) (1591-1642) was a Polish-Lithuanian noble, komorzy stolowicki from 1614, poznanski from 1625, krajczy of the queen from 1617, krajczy or Lithuania from 1633, podczaszy of Lithuania from 1638, voivode of Nowogródek from 1642, member of Knights Hospitaller (kawaler maltanski), patron of Knight Hospitallers centers in Poznan and Stwolowce (in Lithuania).
In 1621 took part in the Battle of Chocim, commander of mercenaries Lisowczycy in 1622 during the period of their service in the Holy Roman Empire.
After the death of his older brother, Albrycht Wladyslaw Radziwill, he inherited ordynacja of Nieswiez in 1636, but gave it up to his brother Aleksander Ludwik Radziwill.
Born on 4 December 1591 in Nieswiez, died on 5 November 1642 in Assisi.
Son of Mikolaj Krzysztof "Sierotka" Radziwill and Halszka Eufemia Wisniowiecka.
Author: Herszek Leibowicz, Marcin Franciszek Wobe Source: Wobe M. F., Leybowicz H. Icones familiae ducalis Radivilianae ex originalibus ... picturis desumptae: inscriptionibus historico-genealogicis ... illustratae, ab anno ... 1346 ad annum 1758 deductae. Nesvisii: Typ. Privilegiata Ducali Radiviliana Collegii Societatis Jesu, 1758. License: CC-PD-Mark