Willem was the son of Jan II van Loon-Heinsberg and Margareta van Gennep. The date and place of his birth have not been found.
He died in 1438. The place is not known.
His wife was Elisabeth von Blankenheim, who he married in 1411. The place has not been found. They had no known children.
|
Willem I van Loon-Heinsberg |
Jan II van Loon-Heinsberg |
Godfried II van Loon-Heinsberg |
Jan I van Loon-Heinsberg |
+ | ||||
|
Katharina von Voorne-Seeland |
+ | |||||||
|
Filippa van Gulik |
Willem van Gulik |
+ | ||||||
|
Johanna van Holland |
+ | |||||||
|
Margareta van Gennep |
Johan II van Gennep |
Johan I van Gennep |
+ | |||||
| | ||||||||
|
Johanna Both van der Eem |
Gijsbrecht III Both van der Eem |
|||||||
|
Margaretha van Arkel |
+ |
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | 1438 |
|
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | graf von Blankenheim | |||||
| Nobility Title | herr zu Jülich, etc. |