Ansillon (Blood of the Time Lords)
From Tardis Wiki, the free Doctor Who reference
Following his time as a hermit, Ku'an Impe and Uba Danth, a later incarnation reclaimed the name Ansillon, returned to Gallifrey, and became the Provost of the Recusary.
Ansillon remained associated with the High Council and the Keeper of the Matrix during his time at the Recusary and gave his testaments in a series of codeces. (AUDIO: Blood of the Time Lords)