The Eysteinn tumulus (Östens hög) in Västerås near Östanbro has been linked to King Eysteinn by some popular historians.
After Eysteinn's death (1157) he composed the poem Elfarvísur for the nobleman Gregorius Dagsson, referring to his victory over Hákon herðibreiðr at Göta älv.
Ívarr, an Icelander, lived at the court of king Eysteinn, who liked him much.
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Ívars þáttr Ingimundarsonar (The Tale of Ívarr Son of Ingimundr) is a short þáttr which emphasizes king Eysteinn's goodness.