Avalon
Avalon is a mythical island featured in the Arthurian legend. It first appeared in Geoffrey of Monmouth's 1136 Historia Regum Britanniae as a place of magic where King Arthur's sword Excalibur was made and later where Arthur was taken to recover... Wikipedia
Ruler: Morgan
Based on: Disputed origins, possibly Glastonbury Tor
Characters: King Arthur, Lady of the Lake, the nine sisters, Melusine
First appearance: Historia Regum Britanniae
Location: Varied or unspecified