Her mother may have been Elisabeth of Poland (1305-1380), in which case Katherine would have been born around 1323.
|Offspring of Katherine of Hungary and Henry II of Swidnica (c1316-1345)|
|Anna of Swidnica (1339-1362)||1339 Swidnica||11 July 1362 Prague|| Charles IV of Bohemia (1316-1378)|
Common ancestors of Katherine of Hungary (c1315-1355) and Henry II of Swidnica (c1316-1345)
- Béla IV of Hungary (1206-1270)
- Casimir I of Opole (c1179-1230)
- Mieszko I Tanglefoot of Poland (c1130-1211)
- Odon of Poznań (c1149-1194)
- Vyacheslava Yaroslavna of Halych (c1157-c1202)
- Władysław Odonic of Poznań (c1190-1239)
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