Priam is the King of Troy and the father of fifty sons, among whom are Hector, Troilus, Paris, Deiphobus, and Helenus, and many daughters including Cassandra.
He also has a bastard son, Margarelon. He is an old man stuck in an apparently endless war who does not rule by decree but by consensus with his royal council, which includes his sons. He is not altogether pleasant with Paris, who is the cause of it all.