After the Doctor grew up on Gallifrey him and his granddaughter, Susan, stole a faulty Type 40 TARDIS and ran away...
Unknown how many stories are between them
Unknown how many stories are between them
After Twice Upon a Time (2017) the timeline changes a bit. Instead of changing into Jodie Whittaker (13th Doctor), Peter Capaldi (12th Doctor) changes into the Rowan Atkinson Doctor from Curse of Fatal Death (1999).
Unknown how many stories are between them
Unknown how many stories are between them
Unknown how many stories are between them
This period of the Doctors life is a myestry to everyone including the Doctor. Except for one who remembers it all... The Rani.
Unknown how much time has passed
Unknown how many incarnations are between them
Unknown how many stories are between them