Llywarch Hen Prince of the Brythonic kingdom of Rheged (0534–0634) Parents Gwawr Elidyr Llydanwyn Children Sandde ap Llywarch Hên ab Elidir Lydanwyn ap Meirchon Gul Dwywg ap Llywarch Hên ab Elidir Lydanwyn Siblings Cynfarch Oer