Rickon
Stark, the youngest son of Lord of Winterfell and the Warden of the North, Ned
Stark and Catelyn Stark. He died at a young age. He was killed by the Villain
of the Series, Ramsay Bolton (Snow who was given officially named Bolton).
Therefore,
much story was not developed on behalf of this young character because of his
young age death. Although, he is still remembered as one of the Stark children
who was lost in the war of the Seven Kingdoms, in addition to Robb Stark.