Phaedrig O'Brien, 17th Baron Inchiquin
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Phaedrig Lucius Ambrose O'Brien, 17th Baron Inchiquin (4 April 1900 – 20 May 1982) was a
geologist A geologist is a scientist who studies the structure, composition, and History of Earth, history of Earth. Geologists incorporate techniques from physics, chemistry, biology, mathematics, and geography to perform research in the Field research, ...
. Additionally, he was the holder of a
hereditary peerage The hereditary peers form part of the peerage in the United Kingdom. As of April 2025, there are 800 hereditary peers: 30 dukes (including six royal dukes), 34 marquesses, 189 earls, 108 viscounts, and 439 barons (not counting subsidiary ...
in the
Peerage of Ireland The peerage of Ireland consists of those Peerage, titles of nobility created by the English monarchs in their capacity as Lordship of Ireland, Lord or Monarchy of Ireland, King of Ireland, or later by monarchs of the United Kingdom of Great B ...
, as well as
Chief of the Name The Chief of the Name, or in older English usage Captain of his Nation, is the recognised head of a family or clan ( Irish and Scottish Gaelic: ''fine'') in Ireland and Scotland. Ireland There are instances where Norman lords of the time like ...
of O'Brien and Prince of Thomond in the Gaelic
Irish nobility The Irish nobility could be described as including persons who do, or historically did, fall into one or more of the following categories of nobility: * Gaelic nobility of Ireland: descendants in the male line of at least one historical grade ...
.


Early life

Inchiquin was the third of five children born to
Lucius O'Brien, 15th Baron Inchiquin Lucius William O'Brien, 15th Baron Inchiquin (21 June 1864 – 9 December 1929) was the England-born holder of a hereditary peerage in the Peerage of Ireland, as well as Chief of the Name of O'Brien and Prince of Thomond in the Gaelic Irish ...
and Ethel Jane O'Brien ''
née The birth name is the name of the person given upon their birth. The term may be applied to the surname, the given name or to the entire name. Where births are required to be officially registered, the entire name entered onto a births registe ...
'' Foster, daughter of Johnston Jonas Foster JP of
Cliffe Hill Cliffe Hill is a hill to the east of the town of Lewes in East Sussex, England. It is impressive on its western edge, where it looms over Lewes. Its summit is covered in a golf course. It is the second lowest Marilyn in England. Also to be fou ...
,
Lightcliffe Lightcliffe is a village in the Calderdale district in West Yorkshire, England. Historically part of the West Riding of Yorkshire, it is situated approximately three miles east of Halifax and two miles north west of Brighouse. Lightcliffe was a ...
. He was educated at
Eton College Eton College ( ) is a Public school (United Kingdom), public school providing boarding school, boarding education for boys aged 13–18, in the small town of Eton, Berkshire, Eton, in Berkshire, in the United Kingdom. It has educated Prime Mini ...
.


Career

Inchiquin came of military age in 1918, and as such briefly served in Britain in
World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
as a Gunner in the
Royal Field Artillery The Royal Field Artillery (RFA) of the British Army provided close artillery support for the infantry. It was created as a distinct arm of the Royal Regiment of Artillery on 1 July 1899, serving alongside the other two arms of the regiment, the ...
, however, the conflict ended before he had served on active service or had been promoted.Appendix F – List of Peers and Sons of Peers who served in the Great e First WorldWar. He reached the induction age of 18 in the war's last year. Listed as having done Home Service, with no medal entitlement. Inchiquin then went on to study at
Magdalen College, Oxford Magdalen College ( ) is a Colleges of the University of Oxford, constituent college of the University of Oxford. It was founded in 1458 by Bishop of Winchester William of Waynflete. It is one of the wealthiest Oxford colleges, as of 2022, and ...
where he graduated with an MA, and undertook further studies at the Imperial College London's
Royal School of Mines The Royal School of Mines comprises the departments of Earth Science and Engineering, and Materials at Imperial College London. The Centre for Advanced Structural Ceramics and parts of the London Centre for Nanotechnology and Department of Bioe ...
, Inchiquin then went on to work in
Kenya Kenya, officially the Republic of Kenya, is a country located in East Africa. With an estimated population of more than 52.4 million as of mid-2024, Kenya is the 27th-most-populous country in the world and the 7th most populous in Africa. ...
as a farmer and coffee planter from 1922 until 1936 when he was professionally engaged as a geologist in the mining industry by the Anglo-American Corporation of South Africa. Inchiquin left Africa in 1939 to serve in
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
. He was commissioned in 1940 as Second Lieutenant into the
Rifle Brigade The Rifle Brigade (The Prince Consort's Own) was an infantry rifle regiment of the British Army formed in January 1800 as the "Experimental Corps of Riflemen" to provide sharpshooters, scouts, and skirmishers. They were soon renamed the "Rifle ...
. Inchiquin was subsequently attached to the East African Intelligence Corps in
Somaliland Somaliland, officially the Republic of Somaliland, is an List of states with limited recognition, unrecognised country in the Horn of Africa. It is located in the southern coast of the Gulf of Aden and bordered by Djibouti to the northwest, E ...
,
Ethiopia Ethiopia, officially the Federal Democratic Republic of Ethiopia, is a landlocked country located in the Horn of Africa region of East Africa. It shares borders with Eritrea to the north, Djibouti to the northeast, Somalia to the east, Ken ...
and
Madagascar Madagascar, officially the Republic of Madagascar, is an island country that includes the island of Madagascar and numerous smaller peripheral islands. Lying off the southeastern coast of Africa, it is the world's List of islands by area, f ...
and was mentioned in despatches in 1941, as well as wounded. Inchiquin rose to the rank of Major in 1943 and was finally
demobilised Demobilization or demobilisation (see American and British English spelling differences, spelling differences) is the process of standing down a nation's armed forces from combat-ready status. This may be as a result of victory in war, or becaus ...
in 1946. After demobilisation he returned to the Anglo-American Corporation of South Africa and worked for the company until he entered the British
Colonial Service The Colonial Service, also known as His/Her Majesty's Colonial Service and replaced in 1954 by Her Majesty's Overseas Civil Service (HMOCS), was the British government service that administered most of Britain's overseas possessions, under the aut ...
in 1954. He was employed on survey to the government of
Northern Rhodesia Northern Rhodesia was a British protectorate in Southern Africa, now the independent country of Zambia. It was formed in 1911 by Amalgamation (politics), amalgamating the two earlier protectorates of Barotziland-North-Western Rhodesia and North ...
(now
Zambia Zambia, officially the Republic of Zambia, is a landlocked country at the crossroads of Central Africa, Central, Southern Africa, Southern and East Africa. It is typically referred to being in South-Central Africa or Southern Africa. It is bor ...
), as senior geologist, becoming assistant director in 1957. He retired from the Colonial Service in 1959, but continued to work as a consultant geologist until 1967, and succeeded to the Baron Inchiquin peerage in 1968.


Family

Inchiquin was the younger brother of
Donough O'Brien, 16th Baron Inchiquin Donough Edward Foster O'Brien, 16th Baron Inchiquin (5 January 1897 – 19 October 1968) was an Irish peer and 29th direct descendant of Brian Boru. Early life Inchiquin was the first of five children born to Lucius O'Brien, 15th Baron Inchiqu ...
, whom he inherited the Baron Inchiquin peerage from upon his death as he had no male issue. He was also the uncle of
Conor O'Brien, 18th Baron Inchiquin Conor Myles John O'Brien, 18th Baron Inchiquin (17 July 1943 – 3 June 2023), The O’Brien (Chief of the Name), Prince of Thomond, and 10th Baronet of Leamaneh, was an English-born Irish clan chief and holder of an Irish peerage. Although hi ...
. On 19 February 1945, he married Vera Maud Winter, the daughter of Reverend Clifton Winter of Winton House in
Dawlish Dawlish is a seaside resort town and civil parishes in England, civil parish in the Teignbridge district in Devon, England. It is located on the south coast of England at a distance of from the city of Exeter and a similar distance from the to ...
, Devon. They had no issue. After succeeding to his brother's peerage, he returned to Ireland where he maintained Thomond House on the former ancestral estate of
Dromoland Castle Dromoland Castle () is a castle, located near Newmarket-on-Fergus in County Clare, Ireland. It is operated as a five-star luxury hotel with a golf course, with its restaurant, the "Earl of Thomond", being awarded a Michelin star in 1995, ...
. The 16th Baron had sold most of the estate including the ancestral seat to billionaire industrialist Bernard McDonough in 1962 and had subsequently built the adjacent Thomond House. Today the Castle remains intact and serves as a luxury hotel. It is now owned by a series of
Irish-American Irish Americans () are Irish ethnics who live within in the United States, whether immigrants from Ireland or Americans with full or partial Irish ancestry. Irish immigration to the United States From the 17th century to the mid-19th c ...
businessmen. Inchiquin also maintained a smaller home in England at
Richard's Castle Richard's Castle is a village, castle and two civil parishes on the border of the counties of Herefordshire and Shropshire in England. The Herefordshire part of the parish had a population of 250 at the 2011 United Kingdom census, 2011 census, ...
near
Ludlow Ludlow ( ) is a market town and civil parish in Shropshire (district), Shropshire, England. It is located south of Shrewsbury and north of Hereford, on the A49 road (Great Britain), A49 road which bypasses the town. The town is near the conf ...
.Addresses given in sketch. Inchiquin died on 20 May 1982, in Richards Castle and was succeeded by his nephew Conor as the 18th Baron Inchiquin.


References

{{DEFAULTSORT:Inchiquin, Phaedrig Lucius Ambrose O'Brien, 17th Baron 20th-century British geologists 1982 deaths People educated at Eton College People from County Clare Phaedrig 1900 births 17 British Army personnel of World War I Royal Field Artillery soldiers British Army personnel of World War II Rifle Brigade officers Irish chiefs of the name