Berwyn
A Dwarf girl originally from Lancre who now works on the Clacks down Quirm way. Her second name in one interpretation might be Berwynsniece, Nefioberwyn, or Berwynssnifte, depending on which locality of Dwarfs you ask. Her Uncle Berwyn was moved to violence by the implied threat to her of rogue Dwarfs burning down clacks towers, however.
Anotation
Berwyn is also a Gondorian warrior in Lord of the Rings. More plausibly here, the Berwyn range of mountains are Snowdonia's lesser-known younger siblings, extending from the Nant Conwy east into Denbighshire and petering out in Flintshire. Their tallest mountain is Cadair Berwyn - still a bit of a dwarf next to Snowdon and Cadair Idris, though.