The most storylines begin in the year 298 AC (After Conquest), whilst the prologue takes place in 297 AC. Eddard Stark, Lord of Winterfell and Warden of the North, performs the execution of a man of the Night's Watch who has betrayed his vows and fled from the Wall.
Jaime Lannister of the Kingsguard betrayed and murdered King Aerys and House Lannister swore loyalty to Robert Baratheon.
The Tyrells and remaining royalists surrendered and Robert Baratheon was declared King of the Seven Kingdoms.
Unfortunately, during the war, Lyanna Stark had died, apparently of illness shortly after her brother captured the fortress where she'd been held captive; Robert Baratheon instead married Cersei Lannister to cement the alliance with her House.
Despite Robert's victory, the Mad King's younger son Viserys and only daughter Daenerys were taken to safety across the sea by loyal retainers.
After the war House Martell chose a path of isolation, since Prince Doran's sister Elia Martell (Prince Rhaegar's wife) and her young children had been killed by knights sworn to House Lannister during the storming of the capital.
Six years later, King Robert proved his resolve by defeating a rebellion by Lord Balon Greyjoy of the Iron Islands.
Balon's two eldest sons were killed and his youngest son, Theon, was given to the care of Eddard Stark as a ward.
Main article: Chapter Summaries A Game of Thrones follows three principal storylines as they develop in tandem with one another.
A Game of Thrones is the first of seven planned novels in A Song of Ice and Fire, an epic fantasy series by American author George R. Fifteen years prior to the novel, the Seven Kingdoms were torn apart by a civil war, known alternately as "Robert's Rebellion" and the "War of the Usurper." Prince Rhaegar Targaryen kidnapped Lyanna Stark, arousing the ire of her family and of her betrothed, Lord Robert Baratheon (the war's titular rebel).