Pierre was the only son of a simple middle class Swiss family. He joined the Swiss Army, and then moved into the Swiss Guard, having just lost his parents.
He was dedicated and loyal to his job, but was young and brash enough to ask questions.
His life is turned upside down That Night when the Vatican is threatened by the Illuminati and he discovered his own boss was behind the plot.
After discovering of Vampires, he had gone to Monseigneur Andrew Kiernan and requested to be Turned.