Balerion (ship)

Balerion is the name given by Daenerys Targaryen to the ship she purchases to leave Qarth along with her khalassar and dragons. It is named after Balerion, the dragon of her ancestor Aegon I Targaryen.

In the books
In the A Song of Ice and Fire novels, Illyrio Mopatis sends three ships - Saduleon, Joso's Prank, and Summer Sun - to Qarth to bring Daenerys Targaryen back to Pentos. Daenerys renames the three ships after the three dragons of her ancestor Aegon the Conqueror