"Winter is coming."
―Words of House Stark.

House Stark is a great house of Westeros (and formerly/currently a royal house), and the principal house of the North. The foundations of the house date back to the First Men, going as far back as the Age of Heroes. Before Aegon's conquests, the Kings of Winter ruled over the First Kingdom of the North, and after the foundation of the Seven Kingdoms, ruled over the province of the North. They are the most prestigious house in the Seven Kingdoms, and by far one of the oldest. House Stark regained royal status when the North seceeded from the Kingdoms, lost it following the Red Wedding and then (in the show), regained it once again following the Battle of the Bastards