A Game of Thrones: 2nd Edition - Mother of Dragons
Cross the Narrow Sea with the Mother of Dragons expansion for A Game of Thrones: The Board Game! Clawing their way into power, this expansion includes a side board of the Free Cities of Essos and an overlay of the Eyrie, as well as new characters and mechanics to bring House Targaryen and House Arryn into the fray. As you make your claim to the Iron Throne, you can call other Houses to your cause with the new vassal mechanic, or even ask for aid from the Iron Bank of Braavos. But be cautious, for the Iron Bank will have its due, and if your campaign proves to be a poor investment, the money lenders' retribution will be swift.
Requires a copy of A Game of Thrones: 2nd Edition.
Check out Mother of Dragons on Board Game Geek.
Overview from Actualol: