Saint Augustine was born in 354 in Tagaste, a provincial Roman city in North Africa. He was raised and educated in Carthage. His mother Monica was a devout Catholic and his father Patricius a pagan, but Augustine followed the controversial Manichaean religion, much to the horror of his mother.
Now we come to the man who is more than anyone else the representative of the West; he is the foundation of everything the West had to say. Augustine lived from A.D. 354 to 430. His influence overshadows not only the next thousand years but all periods ever since. In the Middle Ages his influence was such that even those who struggled against him in theological terminology and method—the Dominicans, with the help of Aristotle—quoted him often. Thomas Aquinas, who was the great opponent of Augustinianism in the Middle Ages, quoted him affirmatively most frequently 
As a youth Augustine lived a hedonistic lifestyle for a time, and in Carthage, he developed a relationship with a young woman who would be his concubine for over a decade, with whom he had a son.