Mieszko II Lambert was King of Poland from 1025 to 1031 and Duke from 1032 until his death.
Mieszko Lambert receiving a liturgical book from Matilda of Swabia, 1000–1025
Richeza of Lotharingia, the niece of Emperor Otto III and Mieszko Lambert's consort
Gniezno Cathedral, where Mieszko Lambert was crowned King of Poland in 1025.
Division of Poland between Mieszko Lambert (red) and his brothers Otto Bolesławowic (blue) and Dytryk (green) following the Treaty of Merseburg in 1032.
Casimir I the Restorer, 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 Restor
Imaginary 19th century depiction of Casimir I by Jan Matejko
Monument of Casimir I the Restorer in Pobiedziska