Siemowit I Of Masovia
| Use attributes for filter ! | |
| Gender | Male |
|---|---|
| Death | 763 years ago |
| Date of died | June 23,1262 |
| Children | Bolesław II of Masovia |
| Konrad II of Masovia | |
| Parents | Konrad I of Masovia |
| Agafia of Rus | |
| Grandchildren | Trojden I, Duke of Masovia |
| Wenceslaus of Płock | |
| Siemowit II of Masovia | |
| Grandparents | Casimir II the Just |
| Helen of Znojmo | |
| Svyatoslav III Igorevich | |
| Current partner | Pereyaslava |
| Date of birth | January 1,1215 |
| Date of Reg. | |
| Date of Upd. | |
| ID | 1338046 |
Siemowit I Of Masovia Life story
Siemowit I of Masovia, was a Polish prince member of the House of Piast, Duke of Czersk during 1247–1248, Duke of Masovia during 1248–1262, ruler over Sieradz during 1259–1260. He was the sixth son of Konrad I of Masovia and his wife Agafia of Rus.
