The Legion of Crowns is an alliance of like-minded pirate crews sparked after a chance encounter at Kano between the former Marine/Captain of the Unwritten Pirates and the then bounty hunter/future Captain of the Devil Pirates. After multiple refusals to join his crew, Jimmy Frayzah would propose one final offer to Nero. This offer was to join him in creating something larger, a
legion, where they would share the power of the
crown. Soon after, others would join them including the Kezin Pirates. The alliance has since been entirely absorbed by the Devil Pirates after Jimmy's main objectives behind it were accomplished.