Red Masquerade by VANCE, Louis Joseph

Summary: In the beginning of his career, Michael Lanyard alias The Lone Wolf, the most talented thief of his day, made the acquaintance of the beautiful Princess Sofia, but he also made an enemy of her husband, Prince Victor. Years later, Lanyard's daughter gets into the crossfiere... Red Masquerade is the third book in the Lone Wolf Series. (Summary by Carolin)