Family loyalty means everything to this direwolf.
...
He and Galloway escaped together from the depths of dangerous ice caverns to soon lead this new pack. Over time they filled it with many different dire wolves and half-breeds from the old world and new. He spent his entire life surrounded by family and friends of Panthalassa. Providing everything possible for his pack, he wanted to ensure they had the best lives. Although Sabían resembles his father in ways that are sometimes indescribable, he does a great job at hiding it from everyone except his partner, Galloway.
Sabían gave many pups to Galloway, in which they traded most for peace treaties with other allied packs. A royal bloodline, envoys of peace for dire wolves spreading across the lands.
(more lore to be written: the only truly evil thing Sabían has ever done was murder Aleutian out of hate for the child he created with Galloway. Sabían did not tell Galloway this news until she was on her deathbed...Tormund helped him as Sabían's friend cover up the murder)