Grenn, also known as Aurochs, is a ranger in the Night's Watch.
Appearances and Character
Grenn is sixteen years old, he has a thick neck and is taller than Jon Snow. His friends of the Night's Watch always mock him for not being smart.
Books
A Feast for Crows
Grenn and Pyp complain to Sam and Edd about how distant Jon Snow has become since being elected Lord Commander. He feels like Jon has abandoned the friends that got him to the position that he has currently reached.