Henry The Third is the leader of a pack in Hizen Province, in the area of Saga and Nagasaki Prefect.
Ginga Nagareboshi Gin
Henry The Third is defeated by John and joins the Ouu army to fight against Akakabuto. As a sign of defeat, he licked John's paws.
Later, Henry warns the others about the dangerous Lord of Satsuma.
He is last seen being slashed by Mosa and getting taken away to safety by the Mutsu Generals. It's possible he died after this.
He can be seen in the background during the final battle against Akakabuto.