- "Its ancestral sword, Ice, was forged in ancient Valyria and has been passed down through the generations."
- ―Bran Stark
Eddard Stark uses Ice to behead Will, a deserter from the Night's Watch. Theon Greyjoy holds the scabbard, as Eddard draws the blade. He holds the sword before him as he pronounces the sentence. Later on Eddard cleans the sword in the godswood at Winterfell. 
In the books
In the A Song of Ice and Fire novels, Ice is a huge and impressive weapon forged out of Valyrian steel and has been in the family's possession for over four centuries. As a Valyrian-forged weapon, it never needs sharpening. Ned uses Ice to execute the Night's Watch deserter Gared and also to sacrifice Lady.
- Ice at A Wiki of Ice and Fire. (spoilers from the books)