Konrad I of Masovia 1187 – 1247

Biography

Konrad I of Masovia was born on January 1, 1187, in Prussia, entering a world of medieval complexity where political alliances and territorial ambitions shaped the destiny of Eastern European nobility. Throughout his life, he rose to prominence as a High Duke of Poland, a position of considerable influence and responsibility during a transformative period in the region’s history. His leadership spanned decades of dynamic change, during which he navigated the intricate challenges of ruling his domain while contending with the forces that defined his era.

On September 7, 1247, Konrad’s life came to an end in Prussia, the land of his birth. Though the specific circumstances surrounding his death remain unrecorded in surviving historical documents, his passing marked the conclusion of a significant chapter in Polish ducal history. In honor of his station and legacy, Konrad was laid to rest at Płock Cathedral in Płock, Poland—a final resting place befitting a ruler of his prominence and reflecting the deep roots he maintained in his realm.