Thomas Bulfinch “Bulfinch's Mythology: Legends of Charlemagne or Romance of the Middle Ages, The Age of Chivalry or Legends of King Arthur and The Age of Fable or Stories of Gods and Heroes (Complete)”, Library of Alexandria
George R. R. Martin (2012). “George R. R. Martin's A Game of Thrones 5-Book Boxed Set (Song of Ice and Fire Series): A Game of Thrones, A Clash of Kings, A Storm of Swords, A Feast for Crows, and and A Dance with Dragons”, p.1230, Bantam