This is part of the Swampverse continuity.
The Irish Dwarf, was one of the main antagonists in the Swampverse campaign.
He is described to have a heavy irish accent, red/brown beard, and to mainly use a rune-axe as a weapon.
The guards are still confused about his death tho.
As they found his burned corpse aslong with most of his staff dead inside a tavern.
If this was by accident or murder is still unknown.