Hrothgar is a Power Level 280 Zealot, and he can be found in the across Suthsexe.
Hrothgar is one of the few Zealots who walks around on foot, this is likely because he’s somewhat of a giant who wields a greataxe. His swings are quite slow but they’ll damage you for a lot of your health so watch out! He also has throwing spears, poisonous grenades and health rations to heal himself up if he takes a significant amount of damage.
Hrothgar uses a blend of strong (red) attacks and lighter (orange) attacks. Lighter attacks can be parried, but strong attacks should be dodged at all costs. If you equip the skill Brush with Death you can trigger slowed time periods by successfully dodging an attack, allowing you to get in some uncontested hits.
Hitting Hrothgar’s weak points could also be of use. His weak points are his both shoulders and his left knee. When you successfully shoot a weak point, you’ll dramatically decrease his stamina, and if his whole bar is depleted, you can get in a powerful Stun Attack.
When you’ve defeated Hrothgar in combat, remember to confirm the kill to complete this Zealot boss fight. You’ll earn a random powerful rune for this fight and a few other supplies. Hrothgar drops the Mysterious Knife Tablet - a Treasure of Britain required to get the Excalibur Sword.