From A Wiki of Ice and Fire
Saduleon is a great cog owned by Illyrio Mopatis and captained by Groleo. It is renamed Balerion, after the Targaryen dragon of old.
A Clash of Kings
Magister Illyrio Mopatis sends Saduleon, Joso's Prank, and Summer Sun to Qarth to bring Daenerys Targaryen back to Pentos in preparation for her return to Westeros. Daenerys accepts, but insists on renaming the ships as Vhagar, Meraxes and Balerion, in homage of the three powerful dragons of Aegon the Conqueror.
A Storm of Swords
On the shores of Slaver's Bay, Daenerys has the Balerion broken up to provide her army with the wood it needs to make instruments of war for the siege of Meereen.
I will never see her like again.—Groleo, on the destruction of the Balerion, to Daenerys Targaryen
- ↑ A Clash of Kings, Chapter 63, Daenerys V.
- ↑ A Storm of Swords, Chapter 71, Daenerys VI.
- ↑ A Dance with Dragons, Chapter 30, Daenerys V.