The Falcon 2 The Black Pope, Mark Ramsay   1982 1st Ed.  9th Printing   5682

Falcon Faces A Master of Evil and a Mistress of Enchantment.
Draco Falcon was leading his band of fighting men against the most fearsome foe he had ever faced. From an impregnable castle, a monstrous man clad in holy Robes but serving the devil was sending out waves of black-armored knights to flood the countryside with blood. This satanic figure was the renegade Archbishop de Beaumont, whom Falcon had made a sacred vow to destroy.
But even before Falcon clashed with this hated enemy, he met a different kind of danger, Called a witch by some, her name was Lilitha.  and her sensual sorcery threatened to conquer the ultimate warrior himself