 It is not known when he first came to Oxford, with which he was so closely connected until the end of his life, but he is known to have been at Oxford around 1345.Thomas Bradwardine was the archbishop of Canterbury, and his book "On the Cause of God against the Pelagians", a bold recovery of the Pauline-Augustine doctrine of grace, would greatly shape young Wycliffe's views, as did the Black Death which reached England in the summer of 1348.From his frequent references to it in later life, it appears to have made a deep and abiding impression upon him.