 In chapter 8 of Fagrskinna , a prose narrative states that , after the death of her husband Eric Bloodaxe , Gunnhild Mother of Kings had a poem composed about him . The composition is by an anonymous author from the 10th century and is referred to as Eiríksmál . It describes Eric Bloodaxe and five other kings arriving in Valhalla after their death . The poem begins with comments by Odin ( as Old Norse Óðinn ) : 
