Mugaisa (draft name) the Knight is actually a woman. This will be also reflected in her biography.
That gender uncertainty was somehow intended in earlier builds (a community-only joke/easter egg on Russian DF2 forum). We just left that as a "feature" there, but the actual reason was that you had to patch the map editor executable separately to make Mugaisa an actual woman. Yes, she replaces Lord Haart and effectively has the same hero index.
In v0.8.2, she will be listed as woman.
Since she replaces Lord Haart, there is a hint: in Heroes 3 RoE Lord Haart actually existed as a standard Castle faction hero. However, RoE storyline hinted that he was a traitor, and Catherine Ironfist killed him, with him to be resurrected as a campaign-only Death Knight in Heroes 3 Armageddon's Blade expansion.
Thus, Heroes 3 mechanics treat Mugaisa and Lord Halton in the same way as they do with Lord Haart and Sir Mullich in the original H3 games. On RoE map format and random maps, Mugaisa/Lord Haart are available. Newer map formats (excluding random maps) feature Lord Halton/Sir Mullich instead.
P.S. I actually like the version about Michael Jackson
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