Whose death do you think was the most unfair?

Markel has something special; it would have been more interesting if he had survived.

Markel is cunning, and even expecting his final death, he figured out how to seal his soul in the Ring of Sinners. With Zephyr's help, he could return to Ashan.

I don't understand why Biara suddenly became male. But the topic question is, "Whose death seems the most unfair to you?"; personally, I think Biara deserved it, considering how many other characters she killed...

Well, Biara just attached herself to everyone. She was in all versions and in different forms. She was Shaday and Saint Isabella. Manipulating everyone in two add-ons is quite something.
But my opinion is Godric. This knight is truly great.