Siemowit II of Masovia was born in 1283.
Siemowit II of Masovia died in 1345.
Siemowit V of Masovia was born in 1389.
Siemowit I of Masovia died in 1262.
Siemowit V of Masovia died in 1442.
Konrad II of Masovia was born in 1250.
Bolesław II of Masovia died in 1313.
Konrad II of Masovia died in 1294.
Boleslaw II of Masovia (the Duke of Masovia)
Stanislaus I of Masovia was born in 1500.
Cymburgis of Masovia was born in 1394.
Euphrosyne of Masovia was born in 1292.
Bolesław I of Masovia was born in 1208.