Agnes of Landsberg
Agnes of Landsberg was a German noblewoman. She was the third child of Conrad II, Margrave of Lusatia, and his wife, Elisabeth, the daughter of Mieszko III the Old, Duke of Poland. She was a daughter-in-law of Henry the Lion.
Life
Agnes was the youngest daughter of the ruling family of Landsberg. Her elder brother was Conrad ; her sister was Matilda, who married Margrave Albert II of Brandenburg. Agnes married in 1211 to Henry V, Count Palatine of the Rhine, the eldest son of Henry the Lion.Ersch and Gruber had this to say about Agnes and her husband:
Agnes died in 1266 and was buried in Wienhausen Abbey
Founding monasteries
Between 1217 and 1221, a, probably wooden, Cistercian monastery was constructed on the lower reaches of the Burgdorfer Aue, near Nienhagen, and populated with nuns from the monastery in Wöltingerode. This was an initiative of Henry and his wife Agnes. The monastery no longer exists, but the place where it stood is still called Klosterhof. The place was infested by "water musquitos and poisonous worms" and suffered from "unhealthy, swampy air". After about the years, the monastery was moved to Wienhausen. In 1233, the Bishop of Hildesheim confirmed the rights of Wienhausen Abbey.in 1243, Agnes founded a monk's monastery in Isenhagen. It was later converted to the Cistercian Isenhagen Abbey.