Lord Michael

Lord Michael is the lord of Empath Abbey during Ultima V.

Lord Michael told the Avatar that the three castles of virtue were opposed to Blackthorn's regime, and the Shadowlords weren't able to enter them, not even the lord of hatred. When the Avatar asked about that particular Shadowlord, Michael told the Avatar to seek out Sin'Vraal, the gargoyle living in the Drylands for this matter.

After being told by Bidney of Buccaneer's Den that Lord Michael had his grapple, the Avatar returned and asked Lord Michael for it. Michael was willing to give it to the Avatar, since right at the moment he wouldn't do much mountain climbing, telling the Avatar of the grapple's limitations.

Ultima V: Lazarus
In Ultima V: Lazarus, Lord Michael tells of how Lord Blackthorn still visits the Abbey from time to time, trying to convince Lord Michael to join his cause. Lord Michael in turn tries to show Blackthorn the error of his ways. It is only Blackthorn's time spent at the Abbey in his youth that prevents him from directly storming the keep.