Topic summary
Janusz III
Extracted from the Wikipedia article Janusz III of Masovia.
Janusz III of Masovia (pl: Janusz III mazowiecki; ca. 27 September 1502 – 9/10 March 1526) was a Polish prince member of the House of Piast in the Masovian branch. He was a Duke of Czersk, Warsaw, Liw, Zakroczym and Nur from 1503 to 1524 (under regency until 1518) jointly with his brother, and sole ruler from 1524 to 1526 as the last male member of the Masovian Piasts.