Isabelle Lorraine de Vaudémont was born 1397 to Ferry I de Vaudémont (1371-1415) and Marguerite de Joinville (1354-1418) and died 17 January 1456 Saarbrücken, Germany of unspecified causes. She married Philipp I. von Nassau-Weilburg (1368-1429) 1411 JL .
Children
| Name | Birth | Death | Joined with |
| Philipp II. von Nassau-Weilburg (1418-1492) | 12 March 1418 | 19 March 1492 Mainz | Margarete von Loen zu Heinsberg (1426-1446) Veronika von Sayn-Wittgenstein (?-1511) |
| Johann II. von Nassau-Saarbrücken (1423-1472) | 4 April 1423 | 25 July 1472 Vehingen | Johanna von Loen zu Heinsberg (1443-1469) Elisabeth von Württemberg-Urach (1447-1505) |
| Margarethe von Nassau-Weilburg (1426-1490) | |||