John the Tosser is a Blighter Mary Anne Disraeli strikes up a conversation with in the Devil's Acre during Driving Mrs. Disraeli, while Jacob is off chasing her dog.
When a thief snatches Mary Anne's dog Desmond, Jacob gives chase and leaves her alone in one of the roughest pubs in London. He comes back to find her calmly talking with John about his relationship with his father. She goes to introduce them, realises she never asked his name, and Jacob says charmed before taking her home.
Jacob agrees to show Mary Anne Disraeli, the Prime Minister's wife, round the Devil's Acre in exchange for the identity of B, the man behind the plot against her husband. The memory's optional goals are to use a paper girl to lure reporters away from Downing Street and to get through the slum without being spotted by its thugs. The One Tun, where John is drinking, is the pub Jacob picks for its beer.
Mary Anne gives John a sweet before they part. Outside, the dog thief returns with friends, but Jacob drives off with Mary Anne, and on the way back to 10 Downing Street she names Lord Cardigan as the man he is looking for.
Benjamin Disraeli
Benjamin Disraeli is the Prime Minister the Templars want dead in Sequence 7. Jacob poses as his bodyguard to save him, and the Disraelis later help the twins steal the Gladstones' invitations to the Buckingham Palace ball.
Earl of Cardigan
The Earl of Cardigan, James Brudenell, is the Templar politician behind the plot to kill Prime Minister Benjamin Disraeli in Sequence 7 of Assassin's Creed Syndicate. Known in Templar letters only as B, he is the target of the memory Motion to Impeach at the Palace of Westminster.
Mary Anne Disraeli
Mary Anne Disraeli is the outspoken wife of the Prime Minister. In Driving Mrs. Disraeli she makes Jacob take her slumming in the Devil's Acre, and in return tells him who the mysterious B behind the plot against her husband is.