Bl. Antoine Neyrot
Joined the Dominicans at the convent of San Marco in Florence, Italy as a young man. While travelling to preach in Naples, Italy, he was captured by Moorish pirates, he was taken to Tunis, Tunisia. He was initially treated pretty well, but his captors perceived him as arrogant for being sure of his faith and imprisoned him and gave him only bread and water. To escape, he renounced Christianity, began to study Islam, worked on a translation of the Koran, and even married. However, he apparently never completely lost his faith, was overcome with remorse, and after a few months he resumed his Dominican habit, found a priest, came back to the Church and publicly proclaimed himself a Christian. Martyr.