Casimir I the Restorer [SEP] noble family
Casimir I the Restorer
Casimir I the Restorer (; b. Kraków, 25 July 1016 – d. Poznań, 28 November 1058), was Duke of Poland of the Piast dynasty and the "de jure" monarch of the entire country from 1034 until his death.
He was the only son of Mieszko II Lambert by his wife Richeza, daughter of Count Palatine Ezzo of Lotharingia (of the Ezzonids) and granddaughter of Emperor Otto II.
Casimir is known as "the Restorer" because he managed to reunite all parts
an invasion by the forces of Bretislaus I of Bohemia. The country suffered territorial losses, and the functioning of the Gniezno archdiocese was disrupted.
10th–12th century Reunification of Poland under Casimir I (1039–1058).
Poland made a recovery under Mieszko's son, Duke Casimir I (r. 1039–1058), known to history as the Restorer. After returning from exile in 1039, Casimir rebuilt the Polish monarchy and the country's territorial integrity through several military campaigns: in 1047, Masovia was taken back from Miecław, a Polish noble