Irmgard was born about 1226, the daughter of unknown parents. The place is not known.
Her husband was Floris I van Bronckhorst. They were married, but the date and place have not been found. Their only known child was Heilwig (c1258->1310).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1226 |
|