Vorian Dayne

King Vorian Dayne is an unseen character in Game of Thrones. He was King of the Torrentine and head of House Dayne during Nymeria's War.

Biography
Vorian held the sword Dawn and was renowned as the greatest knight in Dorne. He fought against Princess Nymeria, but was defeated. Due to his honor and prowess, Nymeria spared him and sent him and five other defeated kings to the Wall in golden fetters, and married his heir, Davos.

Reference

 * "House Dayne (Histories & Lore)"