entity_id,period_id,confidence,rationale,source_id,review_status
ENT_NORF_MARA,PER_NOR_VIKING,high,"The night-spirit that sits upon and 'rides' the sleeper, causing the oppressive nightmare (the word's root, ON mara > Eng. nightmare); blamed in Ynglinga saga for the death of King Vanlandi. Cross-links to the contemporary sleep-paralysis Old Hag tradition. Attested in saga and pan-Germanic folklore; treated by Simek.",SRC_SIMEK_NORTHERN,reviewed