Siemowit [SEP] mother
Siemowit
Siemowit (Polish pronunciation: [ɕɛˈmɔvit], also Ziemowit [ʑɛˈmɔvit]) was, according to the chronicles of Gallus Anonymus, the son of Piast the Wheelwright and Rzepicha. He is considered to be the first ruler of the Piast dynasty. 
He became the Duke of the Polans in the 9th century after his father, Piast the Wheelwright, son of Chościsko, refused to take the place of legendary Duke Popiel. Siemowit was elected as new duke by the "wiec". According to a popular legend
V of Oleśnica.
Life.
After the death of their father on 11/12 December 1455, Siemowit VI and his brother Władysław II inherited their domains; however, because at that moment they are minors, the regency was held by their mother and Paweł Giżycki, Bishop of Płock.
At the beginning of 1459 Siemowit VI attained his majority and began his personal rule according to law, however in practice his regents continue to had the real power.
The first independent move of Siemowit VI took place at the convention