Konrad II Piast of Masovia, Duke of Masovia, was born circa 1249 to Siemowit I of Masovia (c1213-1262) and Pereyaslava Daniilovna of Halych (c1231-1283) and died 1294 Czerwińsk of unspecified causes. He married Hedwig of Poland (c1252-aft1280) 1267 JL . Alfred the Great (849-899)/s, Charlemagne (747-814)/s, Rollo of Normandy (860-932)/s.
|Offspring of Konrad II of Masovia and Hedwig of Poland (c1252-aft1280)|
|Anna of Masovia (1270-c1324)||1270||1324||Przemysław of Racibórz (c1268-1306)|