How is Dark Messiah connected to Heroes of Might and Magic?

What does taste in women have to do with it?
Agrael is perfectly fine in that regard... you can be sure of that...

Exactly!

I have doubts about Xana being the daughter of Agrael and Biara... It's all very questionable...
I don't think Agrael would agree to intimacy with Biara after she betrayed and deceived our hero so many times...
And besides... if she were his daughter, Agrael would definitely make sure that she killed the Messiah...

Well, everything is debatable! Xana fell in love with Sareth, even though she could have killed him long ago, because she has an egoistic character, like most succubi. And Biara and Agrael were flirting with each other too much...

The murder of Nicholas was not planned by either Xa-Beleth or Agrael... Something like a duel for the girl probably happened... Because Isabel was clearly drawn to Nicholas... And she definitely wouldn't have chosen Agrael... But now she's a widow... Alone, beautiful... And she also has a kingdom as a bonus!!!
Here, the ability to correctly prioritize played a role... This is his merit.

This is what confuses me... I read somewhere on one of the forums that the Overlord specifically sent Agrael to kill Nicholas because only Agrael is not affected by the Heart of the Griffin. His spear played a significant role in this, because, as was written in some article about the heroes, it was the magic of Kha-Beleth that guided the hand of his servant and unleashed all his anger on the king. If this is not the case, then it turns out that Agrael can simply not fight, but walk around and shoot red lightning at enemies, causing them to die slowly and painfully, as was the case with Nicholas. And he didn't need the kingdom. He didn't care about the well-being of the Empire and didn't want to come to power there. He was interested in Shi'o and Igg-Shail. Shi'o because it is a powerful military state, and Igg-Shail because it is his homeland, and as it turns out later, he loves his homeland.