Mathilde Welf von Bayern und Sachsen was born circa 1121 to Heinrich IX. von Bayern (1075-1126) and Wulfhild von Sachsen (c1075-1126) and died circa 1168 of unspecified causes. She married Diepold IV. von Vohburg (c1105-1128) . She married Gebhard III. von Sulzbach (c1114-1188) 1129 JL .
Children
| Name | Birth | Death | Joined with |
| Diepold V. von Vohburg (bef1128-c1158) | 1128 | 1158 | |
| Jutta von Vohburg (bef1128-c1168) | 1128 | 1168 | Gebhard II. von Leuchtenberg (-1168) |
| Name | Birth | Death | Joined with |
| Berengar II. von Sulzbach (?-1167) | |||
| Adelheid von Sulzbach (?-1189) | 12 February 1189 | Dietrich IV. von Kleve (c1132-1172) | |
| Sophie von Sulzbach (?-1227) | |||
| Elisabeth von Sulzbach (c1136-c1206) | 1136 | 1206 | Rapoto I. von Ortenburg (c1105-1186) |
| Bertha von Sulzbach (?-1200) | |||
Footnotes (including sources)
| ‡ General |
| ¶ Death |
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