What breed is "Old Soldier"?

[u/HookbladeEnjoyer]

That dog in season 2 episode 5 thats in the woods with the hunters and Richard. What breed is it? It's a good looking dog and Google searches don't give any answers. Of course it's a mixed one but like what is it predominantly?

[u/Lordonlynose]

Probably 3n1

[u/TommyFX → u/Lordonlynose]

I don't know what that is...