Isengard was the daughter of Hermann von der Porten zu Montfort and Adelheid Prisine. The date and place of her birth have not been found.
She died after 1348. The place is not known.
Her husband was Friedrich zum Volrads. They were married, but the date and place have not been found. They had no known children.
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | AFT 1348 |
|