Casimir I the Restorer

Casimir I the Restorer
Duke of Poland
Reign	1040–1058
Predecessor	Bolesław the Forgotten
Successor	Bolesław II the Bold
Born	25 July 1016 Kraków, Poland
Died	19 March 1058 (aged 41) Poznań, Poland
Burial	Archcathedral Basilica of St. Peter and St. Paul, Poznań
Wife	Maria Dobroniega of Kiev
Issue more...	Bolesław II the Bold Władysław I Herman Mieszko Świętosława
Dynasty	Piast dynasty
Father	Mieszko II Lambert
Mother	Richeza of Lotharingia

Casimir I the Restorer (Polish: Kazimierz I Odnowiciel; 25 July 1016 – 19 March 1058), a member of the Piast dynasty, was the duke of Poland from 1040 until his death. Casimir was the son of Mieszko II Lambert and Richeza of Lotharingia. He is known as the Restorer because he managed to reunite parts of the Kingdom of Poland after a period of turmoil. He reincorporated Masovia, and conquered Silesia and Pomerania. However, he failed to crown himself King of Poland, mainly because of internal and external threats to his rule.