Janusz III of Masovia died on 1526-03-10.
Siemowit II of Masovia died in 1345.
Cymburgis of Masovia died on 1429-09-28.
Konrad II of Masovia died in 1294.
Janusz Piekałkiewicz died in 1988.
Janusz Kurtyka died on 2010-04-10.
Janusz III of Masovia was born in 1502.
Stanislaus I of Masovia died in 1524.
Siemowit I of Masovia died in 1262.
Bolesław I of Masovia died in 1248.
Bolesław II of Masovia died in 1313.
Siemowit V of Masovia died in 1442.
Siemowit II of Masovia died in 1345.
Cymburgis of Masovia died on 1429-09-28.
Konrad II of Masovia died in 1294.
Boleslaw II of Masovia (the Duke of Masovia)
Stanislaus I of Masovia was born in 1500.
Duchy of Masovia was created in 1138.