Lord Dominik? Lore speculation

Lord Dominik's Regards is an item I noticed fairly recently and it got me wondering who Lord Dominik might be...

To send someone "your regards" is a phrase often used ironically before you send them to their untimely demise. So it makes me wonder what manner of Giant Lord Dominic has been slaying. I imagine that Lord Dominik orchestrates the removal of metaphorical giants i.e. General du Couteau rather than literal ones. For what purpose though... I don't know.

Does anyone have any ideas?