Quentin

In the short story The Listerdale Mystery, Quentin was Lord Listerdale's butler. When Mrs St. Vincent rented Listerdale's London home, she was told that that Quentin's wages are payed by Listerdale's estate.

When Rupert St. Vincent travel to King's Cheviot he encounters the real Quentin, who was retired on a pension to an estate cottage some time before.