Rickon Stark

Rickon Stark is the youngest member of House Stark.

Background
Rickon was born in 295 AC to Lord Eddard Stark and his wife Catelyn.

A Clash of Kings
When Theon Greyjoy reveals himself to be a turncloak and proclaims himself Prince of Winterfell, Rickon and his brother Bran go into hiding with Osha. Unable to find them, Theon instead kills two peasant boys and burns their bodies, claiming that he has killed Bran and Rickon. However, in actuality, they flee Winterfell and Osha takes Rickon to the island of Skagos.

A Dance with Dragons
Lord Davos Seaworth travels to Skagos per Wyman Manderly's directive, where he finds Rickon. After gaining their trust, Davos brings Rickon and Osha back to the mainland.

The Winds of Winter
Davos brings Rickon and Osha to meet Stannis Baratheon, who is about to execute Theon Greyjoy for the apparent murders of Rickon and Bran. Stannis realizes that Rickon Stark is the key to securing the North and justifying his war on Winterfell, which has since been taken over by the Boltons.