Longclaw, a Valyrian steel sword, belonged to House Mormont for five centuries. Given to Jon Snow by Jeor Mormont as a thank you when Jon saved his life from a wight. Pommel was changed from Mormont bear to a direwolf for House Stark.
Nymeria is one of six direwolf cubs found by the children of House Stark. Nymeria is adopted and raised by Arya Stark. Arya named her after Nymeria of Dorne, the warrior-queen of the Rhoynar who lived a thousand years ago.