Hoyer was the son of unknown parents. The date and place of his birth have not been found.
He died after 1249. The place is not known.
His wife was Mechthild von Heringen. They were married, but the date and place have not been found. Their only known child was Hoyer II (?-<1277).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | AFT 1249 |
|