Josbert was the son of unknown parents. The date and place of his birth have not been found.
He died after 1110. The place is not known.
He had two marriages/partners. His first wife was Muriel de Hauteville. They were married, but the date and place have not been found. They had no known children.
His second wife was Eremburge de Mortain. 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 1110 |
|