Markel lost because he usurped power and turned all Seven Cities of the Academy, Irollan, and half of the Griffin Empire against him, not to mention that he was also at war with demons. He couldn't possibly win! He's a fool, even though he came to power in such an unusual way.
A queen who cannot maintain her power. A queen who no longer cares about the world's problems, who believed some scoundrel. As Caldwell said: "She got mixed up with necromancers, turned the empire into ruins..." The entire empire, from Archbishop Randall to the last peasant in the most remote village, hated her while she was on the throne. And Markel didn't realize this.
A small digression for a big leap.
Added 1 minute ago
And if you lock someone with all magical seals, giving up your flesh and using all your power. The entire life of the Overlord was the creation of a grand plan for his own liberation. And it must be admitted that the plan was brilliant. Kha-Beleth took everything into account, except for Arantir. From his prison, he perfectly coped with his task, and as a result, he turned Askhan into a pile of stones.
Added 9 minutes ago
In general, you can argue about this for a long time, but it won't lead to anything. In the end, everyone has the right to their own opinion, and in this topic, it is precisely the opinion that is being asked. You, as well as some others, consider Kha-Beleth charismatic - great, which means that the developers did not work in vain when they worked on him. We do not consider him so - it is our right, but there is no need to turn this into a whole discussion, which in the end will not give anyone anything. I, for example, consider Markel charismatic, as do some others, and that is also my right. And arguing on this topic will also not give anything, because everyone, I think, will be able to defend and prove their point of view. Therefore, I suggest closing this discussion in this thread, because it looks more like a pointless padding of posts, which does not carry any informative load.

