John Leyburn was an English Catholic prelate who served as Vicar Apostolic of England from 1685 to 1688 and as Vicar Apostolic of the London District from 1688 to 1702.
11 Facts About John Leyburn
John Leyburn was not only a theologian but a mathematician and an intimate friend of Rene Descartes and Thomas Hobbes.
John Leyburn was the fourth son of John Leyburn and Catharine Carr, nephew of George Leyburn, and descended from Westmorland MP Sir James Leyburn.
John Leyburn received holy orders in 1646, and was engaged for some time in teaching the classics in the college.
Smith was appointed Apostolic Vicar for the whole of England, Wales and Scotland in 1625, the same year that George Leyburn went to Arras.
John Leyburn resigned his post in 1631, when he fled to Paris.
Unlike his uncle, John Leyburn regarded the Old Chapter as validly erected, and confirmed by the Holy See, and became its Secretary.
John Leyburn was one of the divines recommended to the authorities at Rome in 1657 as successor to Richard Smith, Titular Bishop of Chalcedon, as Vicar Apostolic of England.
John Leyburn resigned the presidency in 1676, and went to Rome, when he became secretary and auditor to Cardinal Philip Howard.
John Leyburn made a pastoral visitation of the kingdom, administering confirmation to many people, for there had been no catholic bishop resident in England since 1629.
John Leyburn tried to moderate James II's zeal for the Catholic cause, and he told the king that the fellows and students of Magdalen College, Oxford had been wronged, and that restitution ought to be made to them on religious as well as political grounds.