House Stark of Winterfellis a Great House of Westeros ruling the vast region known as The North. It is one of the oldest lines of Westerosi Nobility claiming a line of descent stretching back over eight thousand years.
Before the Targaryen Conquest, the War of the Five Kings and Daenerys Targaryen's invasion of Westeros, the leaders of House Stark ruled over the region as the Kings in the North.
Their rule in the North seemingly ended after the events of The Red Weddingwhen House Frey and House Bolton betrayed House Stark after forming a secret alliance with House Lannister, during which Roose Bolton murdered King Robb Stark. Both the North and Winterfell were taken over by House Bolton. However, the Bolton's hold was jeopardized when Sansa Starkescaped their clutches after learning her brothers Bran and Rickon were still alive and reunited with her half-brother Jon Snow at Castle Black. Sansa and Jon marched on the Boltons to save their younger brother Rickon (who was later murdered by Ramsay Bolton) and retake their family home Winterfell.
House Stark was restored to their former stature after the Battle of the Bastards. The Stark victory led to House Stark's return to royal status in the North with their bannermen declaring Ned Stark's illegitimate son Jon Snow as the King in the North. He later abdicated his title as king in order to gain the full support of Daenerys Targaryen in the Great War, becoming the Warden of the North.
House Stark's sigil is a Grey Direwolf. They are one of the few noble Houses whose family motto is not a boast or threat. Instead, it is a warning, one that will always be relevant:
"Winter Is Coming."