Mieszko IV Tanglefoot

Mieszko IV Tanglefoot (Polish: Mieszko IV Plątonogi) (c. 1130 – 16 May 1211) was Duke of Kraków and High Duke of Poland from 9 June 1210 until his death one year later. He was also Duke of Silesia from 1163 to 1173 (with his brother as co-ruler), Duke of Racibórz from 1173, and Duke of Opole from 1202.