Lys

Lys is one of the Free Cities to the east of Westeros. It is located far to the south of Pentos. Doreah and Salladhor Saan originally hail from Lys.

Season 1
Doreah tells Daenerys Targaryen how in Lys she was trained in the carnal arts. Her training started at nine, though she was not permitted to lie with a man until she was twelve, to Daenerys' bemusement.

In the books
Lys is one of the more powerful of the Free Cities, located on a series of islands in the Summer Sea near the Stepstones and the Disputed Lands. Lys frequently wars with the city of Myr and more distant Tyrosh and Volantis over control of both regions. The people of Lys are known as Lyseni and are noted for their love of the sensual arts, though they are also formidable sailors. Inhabitants of Lys are typically blonde haired and blue eyed. Lys's navy is one of the most powerful on the Summer and Narrow seas, aside from that of Braavos, and Lyseni freesails can be found in many of the ports of the world. They use slaves in Lys, but are otherwise known for their tapestries, perfumes and sweet wines. Lys is home to a famous poison, the Tears of Lys. Lys is home to a native love goddess, but temples to many deities can be found within its walls.