He was taken from the womb of his mother after her death, hence his name (Non natus - not born). Of noble but poor family, he showed early traits of piety and great talent. His father ordered him to tend a farm, but later gave him permission to take the habit with the Mercedarians at Barcelona, at the hands of the founder, St. Peter Nolasco.
Raymond made such progress in the religious life that he was soon considered worthy to succeed his master in the office of ransomer. He was sent to Algiers and liberated many captives. When money failed he gave himself as a hostage. He was zealous in teaching the Christian religion and made many converts, which embittered the Mohammedan authorities.
Raymond was subjected to all kinds of indignities and cruelty, was made to run the gauntlet, and was at last confined and sentenced to impalement. To prevent him from preaching for Christ, his lips were pierced with a red-hot iron and closed with a padlock. He was ransomed by his order and in 1239 returned to Spain. After his arrival in Spain, in 1239, he was made a cardinal by Gregory IX.
He is invoked by women in labor and by persons falsely accused. The appendix to the Roman ritual gives a formula for the blessing of water, in his honor, to be used by the sick, and another of candles.
Taken from The Catholic Encyclopedia