King Robert Baratheon first of his name, King of the Andals, the Rhoynar, and the First Men, Lord of the Seven Kingdoms and the Protector of the Realm was the King of the Iron Throne from the time he took it by conquest from the Targaryens to his death.
Robert was the Lord of the Stormlands during the Roberts' Rebellion after defeating Aerys Targaryen gave it to his youngest brother Renly while giving Dragonstone to his other brother Stannis while keeping Kingslanding for himself.
Husband to Cersei Lannister and father to Joffery Baratheon, Tommen Baratheon, and Myrcella Baratheon. Brother to Stannis Baratheon and Renly Baratheon. Father to many Bastards across Westeros.