《Game of Thrones》Three hundred years ago in Westeros, the “dragon”“ Targaryen family became the only family to survive the doomsday catastrophe in Valyria.They came to Dragonstone, where ”Dragon King% Aegon Targaryen then launched a war against the Seven Kingdoms and established the rule of the Targaryen family.Since then, the chronology of Westeros has been divided into pre-conquest and post-conquest chronology.