Jonnel Stark (One-Eye)

Eldest son of Cregan Stark by his third wife Lynara, called One-Eye for an old wound none of the chronicles troubles itself to explain. After the death in Dorne of his elder half-brother Rickon and the long, slow decline of his father Cregan, the lordship of Winterfell fell to Jonnel rather than to Rickon's daughters. He wed his half-niece Sansa Stark first, in a marriage that joined the elder claim to his own, but she gave him no heir; after her death he wed Lady Robyn Ryswell, who likewise bore him no children. Upon his death the seat passed not to his next-eldest brother Edric (who had children of his own by Serena Stark) but to the fourth son, Barthogan Blacksword, for reasons the Citadel can no longer trace.