Bertha von Rheinfelden, Countess regnant of Kellmünz, was born 1065 to Rudolf von Rheinfelden (c1025-1080) and Adelaide de Savoie (1052-1079) and died 1133 of unspecified causes. She married Ulrich X. von Bregenz (?-1097) 1077 JL .
Children
| Name | Birth | Death | Joined with |
| Adelheid von Bregenz (c1080-1167) | 1080 | 28 June 1167 | Ulrich von Ramsperg (?-1155) |
| Rudolf von Bregenz (c1085-1160) | 1085 | April 1160 | Irmengard von Calw (c1064-c1111) Wulfhild von Bayern (c1119-c1166) |
| Ulrich von Bregenz (c1087-bef1097) | 1087 | 1097 | |
| Heinrich von Kellmünz (c1090-1128) | 1090 | 1128 | |
Residences
Footnotes (including sources)
| ‡ General |