Domina: Murder and intrigue in Ancient Rome by P. C. Doherty
Agrippina, wife of Claudius, mother of Nero, was a beautiful and talented woman who saw her father murdered, was banished by her brother, and was killed on the orders of her son. Her freed man, a one-eyed former gladiator named Parmenon, tells of Agrippina's battle to survive in and control the depraved and violent Imperial Roman court, and the crumbling relationship between mother and son.