Janusz the Younger
Janusz the Younger (pl: Janusz Młodszy; 1376/81 – c. 18 October 1422), was a Polish prince member of the House of Piast.
He was the eldest son of Duke Janusz I of Warsaw and Danutė of Lithuania, a daughter of Kęstutis.
Janusz the Younger (pl: Janusz Młodszy; 1376/81 – c. 18 October 1422), was a Polish prince member of the House of Piast.
He was the eldest son of Duke Janusz I of Warsaw and Danutė of Lithuania, a daughter of Kęstutis.