Bolesław II of Masovia died in 1313.
Siemowit II of Masovia died in 1345.
Konrad II of Masovia died in 1294.
Konrad II of Masovia was born in 1250.
Siemowit II of Masovia was born in 1283.
Boleslaw II of Masovia (the Duke of Masovia)
Stanislaus I of Masovia died in 1524.
Siemowit I of Masovia died in 1262.
Bolesław I of Masovia died in 1248.
Siemowit V of Masovia died in 1442.
Cymburgis of Masovia died on 1429-09-28.
Janusz III of Masovia died on 1526-03-10.
Stanislaus I of Masovia was born in 1500.