Johann I. Commercy von Saarbrücken, Count of Saarbrücken, was born after 1265 to Simon de Commercy (c1232-c1308) and Marguerite and died 23 January 1342 of unspecified causes. He married Mahaut d'Apremont (c1270-1329) . He married Marguerite de Grancey .
Children
| Name | Birth | Death | Joined with |
| Simon von Saarbrücken (-1325) | 1325 | Marguerite de Vaud (-1313) | |
| Johann von Saarbrücken | |||
| Agnes von Saarbrücken | |||
| Mathilde von Saarbrücken | |||
Footnotes (including sources)
| ‡ General |