Archmandrite of B'Ituni
Mentioned in The Colour of Magic as a former owner of the black sword Kring. It was stolen from his supposedly impenetrable palace by Hrun the Barbarian only three days before Hrun met Rincewind and Twoflower at the Temple of Bel-Shamharoth. Even after that short amount of time, Hrun was regretting doing so, as Kring would not stop talking.
What happened to the Archmandrite of B'Ituni after this encounter is not known, nor is anything else about him. It is quite possible that he was killed during Hrun's attack on his palace.