Theophan the Recluse is the fourth Theophan. He refers to the previous ones as "my illustrious predecessors." He got his title because he passed up an opportunity to relocate to a more lucrative mentoring position, preferring to meditate upon the Chasm.
He lists other famous pupils of his immediate predecessor, Theophan the Rotund. They include MawBungGuttle and the otherwise-unmentioned Cram.