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About Konrad II of Masovia
Konrad II of Czersk, was a Polish prince member of the House of Piast, Duke of Masovia during 1264-1275 jointly with his brother, after 1275 sole ruler over Czersk and Duke of Sandomierz during 1289.
Everything about Konrad II of Masovia →- Born
- 1250
- Died
- October 21, 1294