Background
She was the youngest child of Mieszko III the Old, Duke of Greater Poland and since 1173 High Duke of Poland, by his second wife Eudoxia, daughter of Grand Prince Iziaslav II of Kiev.
Duchess of Pomerania Duke of Greater Poland
She was the youngest child of Mieszko III the Old, Duke of Greater Poland and since 1173 High Duke of Poland, by his second wife Eudoxia, daughter of Grand Prince Iziaslav II of Kiev.
On 26 April 1177 Anastasia married with Bogislaw I, Duke of Pomerania. In 1181 Anastasia"s father was able to reconquer Gniezno and Kalisz with the help of Duke Bogislaw I. They even took Poznań from Odon, who finally reconciled with his father one year later. The deaths of Princes Ratibor (14–15 January 1183) and Wartislaw (18 February 1184), left Anastasia"s sons as the only heirs of Duke Bogislaw I. On 18 March 1187 the Duke died while hunting near Sassnitz.
At that time, his two surviving sons Bogislaw II and Casimir II were minors.
After the construction of the monastery was finished, Anastasia moved there, but she never took the religious vows. She died soon after that date and was buried in the Norbertine monastery in TrzebiatóWest