|Title||Lord of Three Towers|
|Allegiance|| House Costayne|
|Died||In 130 AC, at Honeywine|
|Book(s)||The Princess and the Queen (mentioned)|
Owen, along with Lord Alan Tarly and Ser Alan Beesbury, trapped Lord Ormund Hightower's forces between them and Lord Thaddeus Rowan and the Bastard of Bitterbridge and the banks of the Honeywine. Lord Hightower's lines were starting to crumble and defeat seemed all but a forgone conclusion. Daeron Targaryen joined the Battle on the Honeywine on his dragon Tessarion, however, turning the battle for the greens.