Auld Mortality's universe

In a parallel universe, the Doctor pursued a career as an author before leaving Gallifrey with an alternate version of his granddaughter Susan. During this time, the Time Lords had become increasingly corrupt as the centuries passed, and their Lord Presidents began dying during their terms. (AUDIO: Auld Mortality)

After leaving Gallifrey, the Doctor was pursued by the Time Lords, like Agent Zeuro, because of his meddling in history. He saved the princes from the tower, took Leonardo da Vinci with him on his travels, and he gave Beethoven a hearing aid among other cases. (AUDIO: A Storm of Angels)