Riwallon was born about 1050, the son of unknown parents. The place is not known.
He died after 1068. The place is not known.
His wife is not known. They were married, but the date and place have not been found. Their only known child was Derrien (c1060->1100).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1050 |
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| Death | AFT 1068 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | seigneur de Rostrenen | |||||
| Nobility Title | 1068 | sénéchal de Bretagne |