Robert Langdon of "Angels & Demons", and again in the 2016 film adaptation of "Inferno". Dan Brown created the character as a fictional alter ego of himself or "the man he wishes he could be". Brown himself was born June 22, 1964 in Exeter, New Hampshire, and the fictional Langdon is described as having been born on June 22, also in Exeter, and attending the same school as Brown did, Phillips Exeter Academy. Initially it is established that Langdon is a successful scholar who Brown named after John Langdon, a professor of typography at Drexel University who is known for his creation
Robert Langdon from him. While he is in the Louvre, he meets Sophie Neveu, a young cryptologist from the DCPJ. When Langdon and Sophie get the chance to talk in private, he finds out that Jacques Saunière is her grandfather. Saunière instructs Sophie to 'find Robert Langdon', according to the message he left for her in the floor. Hence, Sophie believes he is innocent of her grandfather's murder. He spends the rest of the novel dodging the police and trying to solve the mystery of an ancient secret society, the Priory of Sion, which was once headed by Leonardo da Vinci. At