Heilwig von Frohburg was born circa 1140 to Volmar II. von Frohburg (c1120-aft1175) and died 1183 of unspecified causes. She married Berthold IV. von Zähringen (c1125-1186) .
Children
| Name | Birth | Death | Joined with |
| Berthold V. von Zähringen (1160-1218) | |||
| Agnes von Zähringen (c1160-1239) | 1160 | 1239 | Egino IV. von Urach (c1160-1230) |
| Anna von Zähringen (c1162-aft1226) | 1162 | 1226 | Ulrich von Kyburg (-1227) |
Footnotes (including sources)
| ‡ General |
| Ω Birth |
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