Dorren Stark

"With the help of the Starks, we killed the demon and cleansed your precious watch."

- Ygritte King Dorren Stark is an unseen character in Game of Thrones. He is long dead by the time in which the show takes place. He was a King in the North before the Targaryen Conquest.

Season 5
Shireen Baratheon mentions that Dorren's tomb is in the ancient crypts underneath Winterfell, along with Brandon the Builder.

In the books
In the A Song of Ice and Fire novels, Dorren Stark is mentioned only in passing. According to legend, during the time of his rule the Night's Watch fought Giants and actively traded with the Children of the Forest.