Edgar Wallace,
Number Six and the Borgia — V. Caesar Reveals Himself
(1921)
“ Smith did not speak for a long time. He had enough to think upon. In his early days at Oxford he had posed as an authority on the Renaissance, and knew the history of the Borgias backward. In his old rooms, before things smashed to pieces and the lanes of life so violently turned, he had had a copy of a cartoon reputedly by Da Vinci, inscribed 'Cæsar Borgia de France, Duke of Valentinois, Count of Diois and Issaudun, Pontifical Vicar of Imola and Forli.' And now he recalled the same bold, womanish face in the man who stood looking down at him, enjoying the sensation he had caused. ”
