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

Anglo-Irish

Anglo-Irish was a term used primarily in the 19th and early 20th centuries to identify a privileged social class in Ireland, whose members were the descendants and successors of the Protestant Ascendancy, mostly belonging to the Church of Ireland, which was the established church of Ireland until...

 clergyman.

Decies was the third son of Marcus Beresford, 1st Earl of Tyrone

Marcus Beresford, 1st Earl of Tyrone

Marcus Beresford, 1st Earl of Tyrone , known as Sir Marcus Beresford, 4th Baronet until 1720 and subsequently as The Viscount Tyrone until 1746, was an Irish peer, freemason and politician.-Background:...

, and Catherine Poer, 1st Baroness de la Poer

Baron La Poer

Baron La Poer, de la Poer, or Le Pour, is a title in the Peerage of Ireland held by the Marquess of Waterford. Its creation is the sole instance of the law of the Kingdom of Ireland recognizing a peerage by writ.-The origin of the title:...

. George de la Poer Beresford, 1st Marquess of Waterford, was his elder brother. He served as Bishop of Dromore

Bishop of Dromore

The Bishop of Dromore is an episcopal title which takes its name after the market town of Dromore in County Down, Northern Ireland. In the Roman Catholic Church the title still continues as a separate bishopric, but in the Church of Ireland it has been united with other bishoprics.-History:The...

 from 1780 to 1782, Bishop of Ossory

Bishop of Ossory

The Bishop of Ossory is an episcopal title which takes its name after the ancient of Kingdom of Ossory in the Province of Leinster, Ireland. In the Roman Catholic Church it remains a separate title, but in the Church of Ireland it has been united with other bishoprics.-History:The diocese of Ossory...

 from 1782 to 1794, and as Archbishop of Tuam

Archbishop of Tuam

The Archbishop of Tuam is an archiepiscopal title which takes its name after the town of Tuam in County Galway, Ireland. The title was used by the Church of Ireland until 1839, and is still in use by the Roman Catholic Church.-History:...

 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

Peerage of Ireland

The Peerage of Ireland is the term used for those titles of nobility created by the English and later British monarchs of Ireland in their capacity as Lord or King of Ireland. The creation of such titles came to an end in the 19th century. The ranks of the Irish peerage are Duke, Marquess, Earl,...

 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. One of his daughters, the Hon. Louisa de la Poer, married firstly Henry Thomas Hope

Henry Thomas Hope

Henry Thomas Hope was a British MP and patron of the arts.-Biography:He was the eldest of Thomas Hope and Louisa de la Poer Beresford's three sons, but was estranged from his brothers when he inherited their father's art collections, wealth and property along with...

 (son of Thomas Hope) and was the mother of Alexander Beresford Hope

Alexander Beresford Hope

Sir Alexander James Beresford Beresford Hope PC , known as Alexander Hope until 1854 Sir Alexander James Beresford Beresford Hope PC (25 January 1820 – 20 October 1887), known as Alexander Hope until 1854 Sir Alexander James Beresford Beresford Hope PC (25 January 1820 – 20 October 1887), known as...

, and secondly her cousin William Carr Beresford, 1st Viscount Beresford

William Carr Beresford, 1st Viscount Beresford

General William Carr Beresford, 1st Viscount Beresford, 1st Marquis of Campo Maior, GCB, GCH, GCTE, PC , was a British soldier and politician...

. Decies died in September 1819, aged 76, and was succeeded in the barony by his eldest son John.