Casimir Piast of Bytom, Duke of Bytom, was born circa 1255 to Władysław of Opole (1225-1282) and Euphemia of Poznań (c1230-aft1281) and died 10 March 1312 of unspecified causes. He married Helena circa 1276 JL . Notable ancestors include Charlemagne (747-814), Alfred the Great (849-899). Ancestors are from Russia, Ukraine, France, the United Kingdom, Belgium, Germany, Italy, the Byzantine Empire, Sweden.


Offspring of Casimir of Bytom and Helena
Name Birth Death Joined with
Bolesław of Bytom (c1277-1329)
Władysław of Bytom (c1280-1352) 1280 8 September 1352 Beatrix von Brandenburg (c1270-bef1316)
Luitgard zu Parchim-Richenberg (1310-1362)

Siemowit of Bytom (1292-c1342)
Maria of Bytom (c1295-1317) 1295 15 December 1317 Temesvár Charles I of Hungary (1288-1342)

George of Bytom (1300–1327)
Mieszko of Bytom (c1305-c1344)


Namesakes of Casimir of Bytom (c1255-1312)

 Birth placeDeath placeFatherMotherJoined with
Casimir of Kuyavia (c1279-c1347)Ziemomysł of Kuyavia (c1243-1287)Salome von Pommerellen (c1257-c1312)
Casimir I of Cieszyn (c1285-1358)Mieszko I of Cieszyn (c1254-1315)Euphemia of Masovia (1310-ct1374)
Casimir II the Just of Poland (1138-1194)Bolesław III Wrymouth of Poland (1086-1138)Salomea von Berg-Schelklingen (c1099-1144)Helena of Znojmo (1145-c1204)
Casimir of Bytom (c1255-1312)Władysław of Opole (1225-1282)Euphemia of Poznań (c1230-aft1281)Helena
Casimir I of Kuyavia (c1212-1267)Konrad of Poland (c1188-1247)Agafia of Rus (c1192-c1248)Jadwiga Unknown (?-1235) + Constance of Poland (c1221-1257) + Euphrosyne of Opole (c1229-1292)
Casimir I of Opole (c1179-1230)Mieszko I Tanglefoot of Poland (c1130-1211)Ludmilla Unknown (?-aft1210)Viola Unknown (?-1251)
Casimir III the Great of Poland (1310-1370)Kowal, PolandKraków, PolandWładysław I the Elbow-high of Poland (1261-1333)Hedwig of Poznań (1266-1339)Aldona of Lithuania (c1309-1339) + Adelaide of Hesse (1324-1371) + Christina Rokiczanka (c1330-c1375) + Hedwig of Żagań (c1350-1390) + Cudka
Casimir I of Poland (1016-1058)KrakówPoznańMieszko II Lambert of Poland (c990-1034)Richeza von Lothringen (c994-1063)Maria Dobroniega of Kiev (bef1012-1087)

Footnotes (including sources)

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