King Gregory IV is the ruler of the Kingdom of Ravenstern. He starts owning the capital city of his kingdom, Ravenstern. Gregory will field a large number of Knight of the Dragons as they are his Household troops. The Claimant to his kingdom is Madame Ursula.
He wields his unique sword, Dragon's Tooth. If you are fighting a war against him, putting his kingdom at its heels (5 or less castles + cities) and have him as a prisoner, he will be willing to give you his sword in exchange for his freedom, but this will reduce your relations with the king by 40 and with the Kingdom of Ravenstern by 5 (note: player has to be monarch for this to happen). If he handed the player his weapon, he will use a Runed Bastard Sword.
He rides his special Ravenstern Armored Warhorse, which the player can only obtain it capturing his home city, Ravenstern and checking the City Chest. He will always bring to the battlefield a Dragon Heater Shield and a Long Blue Knight Lance, which he will use to deal devastating Couched lance damage.
All of his equipment, both offensive and defensive (except his unique weapon) has the best modifiers.
These are all of the Mercenary Companies he may hire: