Mieszko Mieszkowic After Mieszko I's death (25 May 992), a war began between Bolesław I and his half-brothers. There is disagreement among historians as to the course of the conflict; the struggle may have lasted only a few weeks or may have only finished in 995. In the end, Bolesław I took control over all the territories of his father and expelled his stepmother and half-brothers from Poland to Germany. Mieszko's further fate is unknown, but in 1032 a certain Dytryk (son of either Mieszko or his brother Lambert) returned to Poland and took control over part of the country after the
Mieszko Kazimierzowic no mention of Mieszko's influence on Polish politics. Mieszko died on 28 January 1065. Year of death was noted by "Rocznik kapituły krakowskiej", while day by "Necrologium monasterii superioris Ratisbonensis". He died unmarried and childless. Mieszko Kazimierzowic Mieszko Kazimierzowic ("Kazimierzowic" means "son of Kazimierz") (16 April 1045 – 28 January 1065) was a Polish prince member of the House of Piast. According to some scholars, he was probably Duke of Kuyavia since 1058 until his death. He was the third son of Casimir I the Restorer by his wife Maria Dobroniega, daughter of Vladimir the Great, Grand Duke of Kiev.