In May 1629, the President of the English College at Douai, Matthew Kellison, published a book entitled: A treatiseof the hierarchie and diuers orders of the church against theanarchie of Caluin . In spite of the title, the main purpose of the book was not to defend Catholic teaching on the hierarchy against Calvin. Kellison wrote it is in response to an urgent appeal by Richard Smith, Bishop of Chalcedon, at a crucial moment in Smith's episcopate. During the four years in which he had been in England as bishop, Smith had met with mounting opposition from the regulars and from the Catholic nobility and gentry. Opposition from the laity was greatly strengthened by the publication in 1628 of a work by the President General of the English Benedictine Congregation, Rudesind Barlow, maintaining that the papal brief appointing Smith in 1625, properly interpreted, did not grant him the extensive powers he claimed. What Smith was asking of Kellison in 1629 was not a work in support of his claims in detail—he intended to write that himself—but a general treatise addressed to the lay Catholics explaining the theological basis on which those claims rested. Kellison, as President of the English College and a theologian of international repute, was the ideal man for the task. ‘In these circumstances,’ Kellison a letter two years later, describing how his book came to be written, ‘the Bishop and leading members of the clergy wrote to me urging me to produce a book on the dignity and authority of bishops. Because of my respect for them, and also because of my love for my country, I consented …’