Kronos

Kronos was the adopted son of Uranus and Gaea, and mate to Rhea. He was a strong hunter and led Elysian Fields first hunting party. Upon his father's banishment which he led, he brought about a years long peace. Throughout that peace, however, he still maintained some of his father's controlling and neglectful behavior, but without his cruelty. Or so it seemed.
Upon Ophion's death, Kronos's son, Zeus, accused him of killing him. Kronos had been vocal about hoping to take over the pack after Gaea, and openly disapproved of Ophion as the successor.
As a result, the pack became divided and outright war began, with wolves picking different sides.
Eventually, this led to one on one combat between Kronos and Zeus, in which Kronos was killed, leaving behind his mate and revealing Zeus's darkness. .