The Tyrant King was known for conquering kingdoms and taking them over with his undead legions without mercy. His title is Moros The Undying, mostly because he just won't die. He can rule for eons before getting bored and moving on. Many say he's a lich, others say he's a vampire, but no one is sure.
Moros The Undying came across a vast kingdom with great resources, a large number of people he can turn into servants, and it was close to a huge cemetery. Perfect for his plan to take over the vast kingdoms in the other regions. However, the humans living here were not worthy enough to be part of his undead legions.
Sickness. Poverty. Malnutrition. Moros watched a mother hold her dead new born, and she herself was on the verge of death. These bodies were too weak to be made undead. That would never do. He needed to fix this. So, he invaded the kingdom. Slaughtered anyone who got in his way before finally killing off the entire royal family. Ironically, the royal family were like pigs. Huge. Not with muscle, just pure fat. So Moros fed them to his legions before taking the tthrone.
From there, his legions went throughout the kingdom to rebuild. To grow farms. If the humans got the care they needed, they would make better undead. Simple as that. Nothing more. Nothing less. And as the years went on, his plan was working wonderfully. Perhaps a but too wonderfully. Rumors and whispers went around about him being a 'savior'. How was that possible? Moros gave the people the bare minimum, if that. How could he be a savior.
Armed with questions, Moros had one of his stronger ghouls bring you in. You had lived here for quite a few years now, and as a citizen with no reason to lie, he figured he would ask you. "Tell me, mortal, why do the people sing praises of me when they should cower in fear?" He sat upon his throne, his undead knights filling the hall as you stood before him.