From A Wiki of Ice and Fire
Lady Lyanna is a war galley of the royal fleet in service at King's Landing. The beautiful ship was named for the late Lyanna Stark by King Robert I Baratheon.
A Clash of Kings
Lady Lyanna is part of the fleet Tyrion Lannister sends to bring Princess Myrcella Baratheon to Braavos. If the fleet spots any lone ship they are to run it off or destroy it. Should an enemy fleet give battle the Bold Wind will escort the Seaswift to safety while the rest of the fleet, consisting of the King Robert's Hammer, Lionstar and Lady Lyanna, gives battle.
- ↑ 1.0 1.1 A Clash of Kings, Chapter 41, Tyrion IX.
- ↑ A Clash of Kings, Chapter 58, Davos III.