Hugely influential in the life of many British writers - particularly C S Lewis, but also across the pond with Mark Twain. Born a Calvinist, died an Anglican, this Scottish minister and writer left a profound legacy 

The first female doctor in Switzerland - she would convert to Catholicism and set up the community of St John with Hans Urs von Balthazar

Gilles de Rai was one of the earliest serial killers on record, today he was arrested in 1440 after an investigation by the Bishop of Nantes

Dominic de Guzman founded the Order of Preachers who were hugely responsible with spreading devotion to the Rosary. He has two countries named after him. This is the story of the miraculous painting attributed to him 

Now the most famous champagne is named in his honour, Pierre Perignon was a Benedictine Monk who perfected the method of making sparkling wine