William Beresford, 1st Baron Decies

William Beresford, 1st Baron Decies (16 April 1743 – 6 September 1819) was an Anglo-Irish clergyman.

The Most Reverend

William Beresford

Archbishop of Tuam
ChurchChurch of Ireland
In office1794-1819
PredecessorJoseph Bourke
SuccessorPower Le Poer Trench
Consecration8 April 1780
by Richard Robinson
Personal details
Born(1743-04-16)April 16, 1743
DiedSeptember 6, 1819(1819-09-06) (aged 76)
Tuam, County Galway, Ireland
SpouseElizabeth Fitzgibbon
Previous postBishop of Dromore (1780-1782)
Bishop of Ossory (1782-1794)

Decies was the third son of Marcus Beresford, 1st Earl of Tyrone, and Catherine Poer, 1st Baroness de la Poer. George de la Poer Beresford, 1st Marquess of Waterford, was his elder brother. He served as Bishop of Dromore from 1780 to 1782, Bishop of Ossory from 1782 to 1794, and as Archbishop of Tuam from 1794 until his death in 1819. He was admitted to the Irish Privy Council in 1794 and in 1812 he was raised to the Peerage of Ireland as Baron Decies, of Decies in the County of Waterford.

Lord Decies married on 16 June 1763 Elizabeth FitzGibbon (1732–1807), daughter of John FitzGibbon and wife Isabella Grove. They had eight children, three sons and five daughters:[1]

Decies died in September 1819, aged 76, and was succeeded in the barony by his eldest surviving son John; his eldest son Marcus Beresford had died in 1803.[1]


  1. ^ a b Edmund Lodge, The Peerage of the British Empire, third edition (London, 1834) page 135


  • Kidd, Charles; Williamson, David (eds.). Debrett's Peerage and Baronetage (1990 ed.). New York: St Martin's Press.
  • Leigh Rayment's Peerage Pages [self-published source][better source needed]
  • "William Beresford, 1st Baron Decies". Thepeerage.com.
  • Venn, J. A., ed. (1940). Alumni Cantabrigienses. London: Cambridge University Press.
Church of Ireland titles
Preceded by
James Hawkins
Bishop of Dromore
Succeeded by
Thomas Percy
Preceded by
John Hotham
Bishop of Ossory
Succeeded by
Thomas Lewis O'Beirne
Preceded by
Joseph Deane Bourke
Archbishop of Tuam
Succeeded by
Power Le Poer Trench
Peerage of Ireland
Preceded by
New Creation
Baron Decies
Succeeded by
John Horsley-Beresford