Lord Admiral of the Reach
|Died||In 134 AC, at the Iron Islands|
|Book(s)||The World of Ice and Fire (mentioned)|
In 134 AC, Lady Johanna Westerling, Lady of Casterly Rock, hired Leo Costayne and his fleet to take revenge on Lord Dalton Greyjoy, the Red Kraken, for burning the Lannister fleet and sacking Lannisport. Costayne and his army took the ironborn unawares and thousands were put to the sword. Ultimately Leo was slain in battle and his host largely destroyed, but a portion of his fleet returned to Lannisport with highborn captives aboard.