John Calvin (Jean Cauvin) (1509-1564) was an influential French theologian and pastor during the Protestant Reformation and the principal figure in the development of the system of Christian theology later called Calvinism. Originally trained as a humanist lawyer, he broke from the Roman Catholic Church around 1530. After religious tensions provoked a violent uprising against Protestants in France, Calvin fled to Basel, Switzerland, where he published the first edition of his seminal work Institutes of the Christian Religion in 1536. Calvin was influenced by the Augustinian tradition, which led him to expound the doctrine of predestination and the absolute sovereignty of God in salvation of the human soul from death and eternal damnation. Calvin's writing provided the seeds for the branch of theology that bears his name. The Reformed and Presbyterian churches, which look to Calvin as a chief expositor of their beliefs, have spread throughout the world.