entity_id,source_id,evidence_type,source_note
ENT_WEL_ARAWN,SRC_MABINOGION,direct attestation,First Branch: Arawn king of Annwn encounters Pwyll hunting; proposes a year-long exchange; his rival Hafgan can only be killed with a single blow (a second blow resurrects him); the First Branch is the primary ancient text for Arawn as a named Otherworld ruler