Johann I. von Heinsberg1238–
- Name
- Johann I. von Heinsberg
| Birth | estimated as equal to wife's birth year about 1238 |
| Death of a wife | Gisela von Falkenstein March 6, 1280 (Age 42 years) |
| Occupation | Herr (lord) |
| Family with Gisela von Falkenstein |
| himself |
Johann I. von Heinsberg Birth: estimated as equal to wife's birth year — about 1238 |
| wife |
Gisela von Falkenstein Birth: estimated as close to sibling(s) — about 1255 18 17 Death: March 6, 1280 |