relationship_id,subject_entity_id,relationship_type,object_entity_id,confidence,rationale,source_id,review_status,period_id 1620,ENT_WEL_DON,parent_of,ENT_WEL_GWYDION,high,Gwydion is consistently named Gwydion fab Dôn (son of Dôn) in the Fourth Branch; Dôn is the dynastic mother of the northern Welsh divine family,SRC_MABINOGION,reviewed,PER_CEL_MEDIEVAL_WELSH 1623,ENT_WEL_ARANRHOD,sibling_of,ENT_WEL_GWYDION,high,Aranrhod is sister of Gwydion; her three tyngedau on her son Lleu are enacted through conflict with Gwydion; Fourth Branch,SRC_MABINOGION,reviewed,PER_CEL_MEDIEVAL_WELSH 1629,ENT_WEL_MATH,teaches,ENT_WEL_GWYDION,high,Math teaches Gwydion the arts of magic; the Fourth Branch frames Gwydion as Math's apprentice and nephew; Mac Cana (1970) pp. 83-86,SRC_MABINOGION,reviewed,PER_CEL_MEDIEVAL_WELSH 3436,ENT_WEL_GILFAETHWY,sibling_of,ENT_WEL_GWYDION,high,Brother of Gwydion.,SRC_MABINOGION,reviewed,