Zero Requiem

Lelouch dreamed about the past glories of his Valyrian family, when they'd held great keeps and their fleets ruled the Narrow Sea. But some nights, he dreamed of a life that wasn't his. He dreamed of an empire, war, and tyranny. Most of all, Lelouch Velaryon dreamed of revolution. (Lelouch from Code Geass inserted into ASOIAF, set in the War of the Ninepenny Kings era).