Arnold Mathew
| Arnold Harris Mathew | |
|---|---|
| Mathew's episcopal consecration | |
| Successor | Rudolph de Landas Berghes, Bernard Mary Williams | 
| Orders | |
| Ordination | 24 June 1877 | 
| Consecration | 28 April 1908 by Gerardus Gul | 
| Personal details | |
| Born | Arnold Harris Ochterlony Matthews 7 August 1852 | 
| Died | 19 December 1919 (aged 67) South Mimms, Hertfordshire, England | 
| Buried | South Mimms, Hertfordshire, England | 
| Nationality | British | 
| Denomination | Old Catholic, formerly Anglican and Roman Catholic | 
| Spouse | Margaret Florence Duncan (1892–?, separated 1910) | 
| Children | Margherita Francesca (born 1895) Francis Arnold Dominic Leo ('Viscount Mathew'; born 1900) Mary Teresa Gertrude (born 1907) | 
| Coat of arms | |
| 
  Ordination history | |
Arnold Harris Mathew, self-styled de jure 4th Earl Landaff of Thomastown (7 August 1852 – 19 December 1919), was the founder and first bishop of the Old Roman Catholic Church in Great Britain and a noted author on ecclesiastical subjects.
Mathew had been both a Roman Catholic and an Anglican before becoming a bishop in the Union of Utrecht (UU).