entity_id,period_id,confidence,rationale,source_id,review_status
ENT_WEL_BRAN,PER_CEL_IRON_AGE,low,"The Celtic severed-head cult documented archaeologically from the Iron Age (Roquepertuse, Entremont; La Tène period) provides the probable cultic substrate for Brân's speaking head tradition; Green (1992) argues for continuity between Iron Age head-cult practice and the Mabinogi narrative; confidence is low as there is no direct inscription or attestation for a ""Brân"" figure in the Iron Age",SRC_GREEN_CELTIC_GODS,reviewed
ENT_WEL_BRAN,PER_CEL_MEDIEVAL_WELSH,high,Second Branch of the Mabinogi; the narrative's central figure; medieval Welsh literary attestation,SRC_MABINOGION,reviewed