 Piotr Włostowic

Piotr Włostowic ( 1080 – 1153), also known as Peter Wlast or "Włost") was a Polish noble, castellan of Wrocław, and a ruler ("możnowładca") of part of Silesia.From 1117 he was voivode ("palatyn") of the king of Poland, Bolesław III Wrymouth.