In the last 1,000 years, The Doctor fell in love and had a daughter named In the last 1,000 years, The Doctor fell in love with a woman named Millicent and had a daughter named Marin. Millicent died but The Doctor promised her he’d be a lot more positive from then on. He’s old and tired but keeps a smile. He also lost his right arm but hasn’t regenerated because he’s afraid he’s on his last regeneration. He’s been through so much, being a billion years old, but he’s still heroic and kind.