Ermengarde Carolingien–
| Marriage | Isembart II d’ Altdorf — View this family yes |
| Death of a father | Pépin III Carolingien September 16, 768 |
| Marriage of a sibling | Charles Ier de Herstal Carolingien — Hildegarde de Vintzgau — View this family 771 |
| Death of a mother | Bertrade de Laon 783 |
| Birth of a son #1 | Welf Ier d’ Altdorf de Bavière 787 |
| Birth of a granddaughter #1 | Judith von Altdorf de Bavière 805 |
| Death of a husband | Isembart II d’ Altdorf 805 |
| Death of a brother | Charles Ier de Herstal Carolingien January 28, 814 |
| Death of a brother | Gérard d’ Alsace June 12, 816 |
| Marriage of a grandchild | Louis Ier Carolingien — Judith von Altdorf de Bavière — View this family February 819 |
| Death of a son | Welf Ier d’ Altdorf de Bavière September 3, 824 |
| Death of a granddaughter | Judith von Altdorf de Bavière April 19, 843 |
| Family with parents |
| father |
Pépin III Carolingien Birth: about 714 27 19 — Jupille, Liège Death: September 16, 768 — Saint-Denis, Île de France, France |
| mother |
Bertrade de Laon Birth: 720 24 24 — Laon, Aisne, Picardie, France Death: 783 — Choisy-au-Bac, Oise, Picardie, France |
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Marriage: — |
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| brother |
Charles Ier de Herstal Carolingien Birth: April 2, 742 28 22 — Herstal, Liège Death: January 28, 814 — Aachen, Allemagne |
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21 months brother |
Gérard d’ Alsace Birth: about 743 29 23 Death: June 12, 816 — Rome |
| brother | |
| herself |
| Family with Isembart II d’ Altdorf |
| husband |
Isembart II d’ Altdorf Birth: about 735 35 25 Death: 805 |
| herself | |
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Marriage: — |
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| son |
Welf Ier d’ Altdorf de Bavière Birth: 787 52 Death: September 3, 824 |