Bolesław III of Masovia
Bolesław III of Płock, was a Polish prince member of the House of Piast, Duke of Płock since 1336, ruler over Wizna and Sochaczew since 1345, formally a vassal of the Kingdom of Bohemia during all his reign.
From *.wikipedia.org,
General Info
.
Male
Date of Birth
November 30th, 1319
Age
705
Date of Death
August 20th, 1351
Died Aged
31
Star Sign
Sagittarius
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