Mieszko I Tanglefoot brother Vladimir, Duke of Olomouc, son of Otto III Detleb. They had five children: Mieszko I Tanglefoot Mieszko IV Tanglefoot () (ca. 1130 – 16 May 1211) was Duke of Kraków and High Duke of Poland from 1202 and from 9 June 1210 until his death. 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 (as Mieszko I Tanglefoot). He was the second son of Władysław II the Exile by his wife Agnes of Babenberg, daughter of Margrave Leopold III of Austria and half-sister of
Mieszko I Tanglefoot p. 876). This is the oldest preserved record of the Mieszko's nickname in the form of "Plątonogi". From 1146, after the deposition of his father, Mieszko and his family mainly lived in the town of Altenburg in Saxony, which was granted as a temporary possession to Władysław II by his brother-in-law, King Conrad III of Germany. During his time in exile, Mieszko studied in Michaelsberg and Bamberg. However, the supposed temporary exile was, for the deposed High Duke, for good; he died in Altenburg in 1159. His sons continued the fight to recover their inheritance, and finally three years later,