relationship_id,subject_entity_id,relationship_type,object_entity_id,confidence,rationale,source_id,review_status,period_id 1613,ENT_WEL_BRANWEN,sibling_of,ENT_WEL_BRAN,high,Branwen is sister of Brân the Blessed; her marriage to Matholwch of Ireland triggers the tragedy of the Second Branch,SRC_MABINOGION,reviewed,PER_CEL_MEDIEVAL_WELSH 1615,ENT_WEL_MANAWYDAN,sibling_of,ENT_WEL_BRAN,high,Manawydan is brother of Brân; survives the Irish expedition; Second Branch,SRC_MABINOGION,reviewed,PER_CEL_MEDIEVAL_WELSH