John Leyburn
Encyclopedia
John Leyburn was an English
England
England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

 Roman Catholic priest, who became Vicar Apostolic of the London District
Vicar Apostolic of the London District
The Vicar Apostolic of the London District was the title given to the bishop who headed an ecclesiastical jurisdiction of the Roman Catholic Church in England, the Vicariate Apostolic of the London District, from 1688 to 1850.-Background:...

, and thus the senior Roman Catholic prelate in England, from 1685 to 1702. He was not only a theologian, but also a mathematician, and an intimate friend of Descartes and Hobbes.

Life

He was the fourth son of John Leyburn and Catharine Carr, and nephew of George Leyburn
George Leyburn
George Leyburn was an English Catholic priest, who became President of the English College, Douai.-Life:He was born in Westmoreland, and was admitted a student in the English College at Douai on 13 March 1617, under the name of George Bradley. He studied philosophy under Thomas White, and was...

. He was educated at the English College, Douai
English College, Douai
The English College, Douai was a Catholic seminary associated with the University of Douai . It was established in about 1561, and was suppressed in 1793...

, where he was admitted a student on 20 June 1633. He received holy orders, was engaged for some time in teaching the classics in the college. During the time of the English Civil War
English Civil War
The English Civil War was a series of armed conflicts and political machinations between Parliamentarians and Royalists...

 he was tutor to Francis Browne, eldest son of Viscount Montague, and made the Grand Tour
Grand Tour
The Grand Tour was the traditional trip of Europe undertaken by mainly upper-class European young men of means. The custom flourished from about 1660 until the advent of large-scale rail transit in the 1840s, and was associated with a standard itinerary. It served as an educational rite of passage...

 with his pupil. He was one of the divines recommended to the authorities at Rome in 1657 as successor to Richard Smith, Titular Bishop of Chalcedon
Chalcedon (titular see)
Chalcedon is a Catholic titular see, having the status of archdiocese. During the seventeenth century, the title Bishop of Chalcedon was officially given to the Roman Catholic Bishop of England after 1623.-History:...

, as Vicar Apostolic of England. For about twelve years he resided in England as domestic chaplain in the family of Lord Montague. Unlike his uncle, he regarded the Old Chapter
Old Chapter
The Old Chapter was the body in effective control of the Roman Catholic Church in England, from 1623 to 1850 .-Origin:...

 in England as validly erected, and confirmed by the Holy See
Holy See
The Holy See is the episcopal jurisdiction of the Catholic Church in Rome, in which its Bishop is commonly known as the Pope. It is the preeminent episcopal see of the Catholic Church, forming the central government of the Church. As such, diplomatically, and in other spheres the Holy See acts and...

.

He was appointed President of the English College at Douai, that post being surrendered to him by his uncle George Leyburn, in May 1670. He resigned the presidency in 1676, and went to Rome, when he became secretary and auditor to Cardinal Philip Howard. In a particular congregation for English affairs held in the Quirinal Palace
Quirinal Palace
The Quirinal Palace is a historical building in Rome, Italy, the current official residence of the President of the Italian Republic. It is located on the Quirinal Hill, the tallest of the seven hills of Rome...

 on 6 August 1685, the Propaganda, on the relation of the Cardinal, elected Leyburn vicar-apostolic of all England, and the Pope gave his approbation the same day. He was consecrated at Rome on 9 September, with the title of bishop of Adrumetum, in partibus. In the following month he arrived in London, and James II
James II of England
James II & VII was King of England and King of Ireland as James II and King of Scotland as James VII, from 6 February 1685. He was the last Catholic monarch to reign over the Kingdoms of England, Scotland, and Ireland...

 lodged him in St. James's Palace
St. James's Palace
St. James's Palace is one of London's oldest palaces. It is situated in Pall Mall, just north of St. James's Park. Although no sovereign has resided there for almost two centuries, it has remained the official residence of the Sovereign and the most senior royal palace in the UK...

, and allowed him a pension of £1,000 a year. With him came Ferdinando d'Adda
Ferdinando d'Adda
Ferdinando d'Adda was a Roman Catholic Cardinal, bishop and diplomat.D'Adda was born in Milan. He served as Prefect of the Congregation of Rites...

, as papal nuncio. He made a pastoral visitation of the kingdom, administering confirmation to many people, for there had been no catholic bishop resident in England since 1629. During his residence at court he was on terms of intimacy with Thomas Cartwright
Thomas Cartwright (bishop)
Thomas Cartwright was an English bishop and diarist, known as a supporter of James II.-Life:He was born and went to school in Northampton, and studied at the University of Oxford. He was first at Magdalen Hall, and then at Queen's College where he was tutored by Thomas Tully. He was ordained by...

, bishop of Chester
Bishop of Chester
The Bishop of Chester is the Ordinary of the Church of England Diocese of Chester in the Province of York.The diocese expands across most of the historic county boundaries of Cheshire, including the Wirral Peninsula and has its see in the City of Chester where the seat is located at the Cathedral...

.

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
Magdalen College, Oxford
Magdalen College is one of the constituent colleges of the University of Oxford in England. As of 2006 the college had an estimated financial endowment of £153 million. Magdalen is currently top of the Norrington Table after over half of its 2010 finalists received first-class degrees, a record...

 had been wronged, and that restitution ought to be made to them on religious as well as political grounds. In 1688, England was divided into four parts, the Vicariate Apostolic of the London District, the Vicariate Apostolic of the Midland District, the Vicariate Apostolic of the Western District and the Vicariate Apostolic of the Northern District; Leyburne was named Vicar Apostolic of the London District, the senior position. He became the first vicar-apostolic of the London district, created by letters apostolic of 30 January 1688.

When the Glorious Revolution
Glorious Revolution
The Glorious Revolution, also called the Revolution of 1688, is the overthrow of King James II of England by a union of English Parliamentarians with the Dutch stadtholder William III of Orange-Nassau...

 broke out, Leyburn and Bonaventure Giffard
Bonaventure Giffard
Bonaventure Giffard was a Roman Catholic bishop who served as the Vicar Apostolic of the Midland District of England from 1687 to 1703 and Vicar Apostolic of the London District of England from 1703 to 1734.-Life:...

 were seized at Faversham
Faversham
Faversham is a market town and civil parish in the Swale borough of Kent, England. The parish of Faversham grew up around an ancient sea port on Faversham Creek and was the birthplace of the explosives industry in England.-History:...

 on their way to Dover
Dover
Dover is a town and major ferry port in the home county of Kent, in South East England. It faces France across the narrowest part of the English Channel, and lies south-east of Canterbury; east of Kent's administrative capital Maidstone; and north-east along the coastline from Dungeness and Hastings...

, and were under arrest when the king was brought there. Both prelates were committed to prison, Leyburn being sent to the Tower of London
Tower of London
Her Majesty's Royal Palace and Fortress, more commonly known as the Tower of London, is a historic castle on the north bank of the River Thames in central London, England. It lies within the London Borough of Tower Hamlets, separated from the eastern edge of the City of London by the open space...

. On 9 July 1690 he and Giffard were liberated on bail by the court of queen's bench, on condition that they transported themselves beyond sea before the last day of the following month. Afterwards he was frequently alarmed and summoned when any disturbance happened in relation to the government, but eventually the ministry took no further notice of him, and only desired to be made acquainted from time to time with his place of abode. He died in London on 9 June 1702, and was succeeded in the vicariate-apostolic of the London district by Giffard.

Works

Leyburn translated into Latin Sir Kenelm Digby's treatise on the soul, under the title of ‘Demonstratio Immortalitatis Animæ Rationalis,’ Paris, 1651 and 1655. With Giffard, P. Ellis, and James Smith he published ‘A Pastoral Letter from the four Catholic Bishops to the Lay-Catholics of England’ (on the re-establishment of Catholic episcopal authority in England), London, 1688, 1747.
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