Ieuan was born about 1300, the son of unknown parents. The place is not known.
He died in 1343. The place is not known.
His wife was Efa verch Gruffudd. They were married, but the date and place have not been found. Their only known child was Nest verch Ieuan (1366-?).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1300 |
|
|||
| Death | 1343 |
|