Aleksander Mazowiecki

Parents

• Siemowit IV
• Alexandra of Lithuania

Children

Siblings

• Cymburgis of Masovia
• Amelia of Masovia
• Euphemia of Masovia
• Władysław I of Masovia
• Siemowit V of Masovia
• Casimir II of Masovia
• Anna of Masovia
• Jadwiga of Masovia
• Catherine of Masovia
• Trojden II of Płock
• Maria of Masovia