Question: Which Jesus College educated clergyman held the most senior diocesan position below a bishop in the Catholic Church ?

text: List of clergy educated at Jesus College, Oxford
Alumni -- Other Anglican clergy
Mallwyd church , where John Davies was rector The University Church of St Mary the Virgin , Oxford , where Edmund Ffoulkes was vicar
Jesus College is one of the constituent colleges of the University of Oxford in England. The college was founded in 1571 by Queen Elizabeth I at the request of Hugh Price, a Welsh clergyman, who was Treasurer of St David's Cathedral in Pembrokeshire. The college still has strong links with Wales, and about 15% of students are Welsh. There are 340 undergraduates and 190 students carrying out postgraduate studies. Women have been admitted since 1974, when the college was one of the first five men's colleges to become co-educational. Old members of Jesus College are sometimes known as Jesubites. Three Archbishops of Wales have studied at Jesus College. A. G. Edwards, the first archbishop of the Church in Wales after its disestablishment, read Literae Humaniores from 1871 to 1874, and was archbishop from 1920 to 1934. Glyn Simon, a student from 1922 to 1926, was Archbishop of Wales from 1968 to 1971. He was succeeded by Gwilym Williams, who was archbishop from 1971 to 1982. Other bishops to have held office in Wales include Francis Davies, Roy Davies, John Harris and Morgan Owen (who were all Bishops of Llandaff), Humphrey Humphreys, Daniel Lewis Lloyd and Humphrey Lloyd (who were Bishops of Bangor), William Lloyd and John Wynne (who were Bishops of St Asaph), and John Owen and William Thomas (who were Bishops of St David's). William Havard was a Welsh rugby international before becoming Bishop of St Asaph, then Bishop of St David's.
Name M G Degree Notes
James Bandinel ( F ) 1752 1758 BA ( 1755 ) , MA ( 1758 ) , BD ( 1767 ) , DD ( 1777 ) University Proctor ( 1776 ) and Public Orator ( 1776-1784 )
Richard Bassett 1797 DNG - Welsh cleric , thought to be the last Anglican clergyman to be associated with the Methodists
John Caldicott - 1851 BA Literae Humaniores ( 2nd , 1851 ) , BA Mathematics ( 3rd , 1851 ) , BD and DD ( 1874 ) Matriculated from Pembroke College ; Anglican priest and headmaster of Bristol Grammar School
J. R. Cohu ( F ) 1876 1880 BA Literae Humaniores ( 1st , 1880 ) , MA ( 1883 ) Headmaster , clergyman and writer on biblical topics
William Lucas Collins 1833 1840 BA Literae Humaniores ( 2nd , 1838 ) , MA ( 1840 ) Clergyman and contributor to Blackwood 's Magazine
David Davies 1761 DNG - Clergyman and author of The Case of Labourers in Husbandry , advocating a minimum wage for agricultural labourers
Hugh Davies 1757 1762 BA Welsh clergyman and botanist , whose main work , Welsh Botanology ( 1813 ) , was the first to cross-reference the names of plants in Welsh with their scientific names
John Davies 1589 1594 BA Rector of Mallwyd , Gwynedd , who was also a lexicographer and translator of the Bible into Welsh ( 1620 edition ) ; awarded further degrees of BD ( 1608 ) and DD as a member of Lincoln College
Edward Edwards ( F ) 1743 1747 BA Cleric , with a particular interest in Xenophon 's Memorabilia
John Edwards 1825 1830 BA Welsh cleric and composer , most notably of the hymn tune Rhosymedre ( named after his parish )
John Edwards 1624 1629 BA ( 1626 ) , MA ( 1629 ) Welsh priest and translator , whose pseudonym was Siôn Treredyn
Jonathan Edwards ( F ) 1633 1637 BA ( 1634 ) , MA ( 1637 ) , DD ( 1642 ) Archdeacon of Derry
David Ellis 1794 DNG - Welsh clergyman , poet and transcriber of manuscripts , who was at the college from March to June 1794
John Ellis ( F ) 1690 1696 BA ( 1693 ) , MA ( 1696 ) Welsh cleric and antiquarian
Philip Ellis 1840 1846 BA ( 1844 ) , MA ( 1846 ) One of the earliest Tractarians in north Wales ; Foster gives his BA date as 1844 , but Ellis gave it as 1843
Thomas Ellis ( F ) 1728 1731 BA ( 1731 ) , BD ( 1741 ) Welsh cleric , appointed to college livings in Holyhead and Nutfield , Surrey
David Evans 1725 ? 1731 BA ( 1728 ) , MA ( 1731 ) Welsh priest , scholar and musician
John Evans 1722 1726 ? ? Welsh anti-Methodist cleric ; a founder member of the Honourable Society of Cymmrodorion ; whilst a John Evans from Jesus College graduated with a BA in 1726 , it is unclear whether that was this individual
Edmund Ffoulkes ( F ) 1837 1841 BA Literae Humaniores ( 2nd ) Anglican priest who converted to Roman Catholicism and back to Anglicanism , becoming vicar of the University Church of St Mary the Virgin ; nephew of Principal Henry Foulkes
Peter Fogg 1855 1859 BA Literae Humaniores ( 3rd ) First Jesus man to become President of the Oxford Union ; Archdeacon of George in the Cape of Good Hope ( 1871-1920 )