Ahldbhar was a male Roegadyn Mage/Thaumaturge/etc. Was said to have left the other 'Archons' with Black Hooded people. He was said to represent Rhalgar. Also it was said that he was "hulking" i.e. really big.

Yugiri isn't part of the Sharlayans/Archons. Anyone else who would be one would bear the Archon tattoo and come from Sharlayan. Look forward for more to come/appear. It'd be neat to see Ahldbhar down the line also.