Timeline
From Asoiaf
Lann the Clever, a legendary trickster, lives during the Age of Heroes.
Garth Greenhand is gardener king of the First Men. He wears a crown of vines and flowers and made the land bloom.
The King in the North of House Stark rules northern Westeros from Winterfell.
Andal adventurers carves out a mighty kingdom in the western hills and valleys of Westeros.
The last of the River Kings is lain by the Storm Kings who conquer all the way to the Neck.
Harwyn Hardhand, King of the Isles, takes the Trident from Arrec the Storm King.
The Wars of Conquest are fought by Aegon the Conquerer to unite the Seven Kingdoms.
Orys Baratheon, rumored to be Aegon's bastard brother, defeats Argilac the Arrogant, tbe last Storm King. As reward Aegon grants him Argilac's castle, lands and daughter.
The last King in the North, Torrhen Stark, the King Who Knelt, chooses to swear fealty to Aegon the Dragon rather than do battle. He therefore keeps his land and continued to rule as Lord of Winterfell.
Edmyn Tully, Lord of Riverrun and many other river lords deserts Harren the Black, King of the Isles, and joins Aegon.
Harren and his line perishes in the burning of Harrenhal. Aegon rewards Edmyn Tully with the dominion of the riverlands.
Mern, last King of the Reach, perishes at the Field of Fire. His steward, Harlen Tyrell, surrenders Highgarden to Aegon. Aegon grants Harlen Highgarden and dominion of the Reach.
