William was the son of unknown parents. The date and place of his birth have not been found.
He died after 1380. The place is not known.
His wife was Joan de Mobberley. 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 1380 |
|
Note 1
son of Henry de Atherton and Emma de Aintree