Ieuan was born in 1268 in Glangwy, Boughrood, Radnorshire, Cymru, the son of unknown parents.
He died in 1309 in Cymru.
His wife was Gladys verch Dafydd. They were married, but the date and place have not been found. Their only known child was Maud verch Ieuan (1329-<1424).
| Event | Date | Details | Source | Multimedia | Notes | ||
|---|---|---|---|---|---|---|---|
| Birth | 1268 |
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| Death | 1309 |
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