Siemowit V of Masovia was born in 1389.
Siemowit V of Masovia died in 1442.
Siemowit II of Masovia was born in 1283.
Siemowit I of Masovia died in 1262.
Siemowit II of Masovia died in 1345.
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.
Janusz III of Masovia was born in 1502.
Konrad II of Masovia was born in 1250.
Boleslaw II of Masovia (the Duke of Masovia)
Stanislaus I of Masovia died in 1524.