Philipp I. von Nassau-Weilburg was born 1368 to Johann I. von Nassau-Weilburg (1309-1371) and Johanna von Saarbrücken (c1330-1381) and died 2 July 1429 Wiesbaden, Germany of unspecified causes. He married Anna von Hohenlohe-Weikersheim (c1374-1410) 1385 JL . He married Isabelle de Vaudémont (1397-1456) 1412 JL .
Children
| Name | Birth | Death | Joined with |
| Philipp von Nassau-Weilburg (1388-1416) | |||
| Johanne von Nassau-Weilburg (c1390-1481) | |||
| 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) | |||
Footnotes (including sources)
| ‡ General |