After Rhaegar Targaryen kidnapped his fiancée, Lyanna Stark, Robert Baratheon led a rebellion against the Mad King Aerys Targaryen. Aided by his childhood friend, Lyanna's brother, Ned Stark, Robert was subsequently crowned king. When he died suddenly in a hunting accident, his heir Joffrey claimed the throne.
Cersei is the only daughter of Tywin Lannister, the richest man in the Seven Kingdoms. Even before she was married off to Robert Baratheon, she was involved in an incestuous relationship with her twin brother Jaime. Like her father, Cersei is interested in maintaining her position of power. She has committed herself to punishing her brother Tyrion, whom she holds responsible for the death of her son Joffrey.
One of Robert Baratheon's two younger brothers, Stannis served as Master of Ships on the Small Council, but he preferred the solitude of the family seat in Dragonstone to King's Landing. After Robert's death, he plotted the murder of his brother Renly to rid himself of a rival, and, at the insistence of the Red priestess Melisandre, has been seeking those with royal blood to sacrifice.
Robert Baratheon's bastard son, Gendry trained as a blacksmith in King's Landing. Upon leaving the city to join the Night's Watch, he met and befriended Arya Stark on the road north. The two separated when Melisandre brought Gendry back to Dragonstone as a sacrifice for Stannis Baratheon. He escaped death when Davos Seaworth set him free
King Stannis' Court
A reformed smuggler who lost the tips of his fingers on one hand as punishment for his previous misdeeds, Davos rescued Stannis and his men during the long siege of Storm's End by procuring onions and other foods to save the soldiers from starvation. Davos, also known as "The Onion Knight," was chosen by Stannis to serve as his Hand and led the king’s fleet in the Battle of the Blackwater. His opinions often run contrary to those
King Stannis' Court
A Red priestess from Asshai, Melisandre worships the Lord of Light. Her visions have told her that Stannis is the true king and as his advisor, she has encouraged him to pursue the throne at all costs. Melisandre has converted Stannis and most of his household to her religion.