Bryan Mahon

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Irish soldier and politician (1862–1930)

title: "Bryan Mahon" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["1862-births", "1930-deaths", "military-personnel-from-county-galway", "8th-king's-royal-irish-hussars-officers", "commanders-in-chief,-ireland", "irish-officers-in-the-british-army", "british-army-personnel-of-the-second-boer-war", "british-army-cavalry-generals-of-world-war-i", "irish-generals", "irish-knights", "irish-people-of-world-war-i", "knights-commander-of-the-royal-victorian-order", "companions-of-the-distinguished-service-order", "knights-commander-of-the-order-of-the-bath", "members-of-the-privy-council-of-ireland", "members-of-the-1922-seanad", "members-of-the-1925-seanad", "members-of-the-1928-seanad", "politicians-from-county-galway", "members-of-the-senate-of-southern-ireland", "fellows-of-the-royal-geographical-society", "independent-members-of-seanad-éireann", "british-army-generals", "british-army-personnel-of-the-mahdist-war", "people-of-the-gallipoli-campaign", "12th-royal-lancers-officers"] description: "Irish soldier and politician (1862–1930)" topic_path: "history" source: "https://en.wikipedia.org/wiki/Bryan_Mahon" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Irish soldier and politician (1862–1930) ::

::data[format=table title="Infobox military person"]

Field	Value
honorific_prefix	General The Right Honourable
name	Sir Bryan Mahon
honorific_suffix
image	File:Gen. Sir B.T. Mahon LCCN2014700426.jpg
birth_date
death_date
birth_place	County Galway, Ireland
death_place	Dublin, Ireland
allegiance	United Kingdom of Great Britain and Ireland
branch	[[File:Flag of the British Army.svg
serviceyears	1883–1921
rank	[[File:British Army (1920–1953) OF-9.svg
unit	8th (King's Royal Irish) Hussars
commands
battles	Mahdist War
awards	{{ubl
embed	yes
office	Senator
term_start	11 December 1922
term_end	29 September 1930
party	Independent
spouse
::

Battle of Ferkeh Second Boer War
Siege of Mafeking World War I
Gallipoli campaign
Macedonian front
Senussi campaign | awards = {{ubl|[[File:Order of the Bath UK ribbon.svg|30px]] Knight Commander of the Order of the Bath|[[File:Dso-ribbon.svg|30px]] Distinguished Service Order|[[File:UK Royal Victorian Order ribbon.svg|30px]] Knight Commander of the Royal Victorian Order|Mentioned in Despatches}} | embed = yes | office = Senator | term_start = 11 December 1922 | term_end = 29 September 1930 | party = Independent | spouse = Sir Bryan Thomas Mahon, (2 April 1862 – 29 September 1930) was an Irish general of the British Army, a senator of the short-lived Senate of Southern Ireland and a member for eight years of the Irish Free State Senate until his death.

Military career

Bryan Thomas Mahon was born at Belleville, County Galway, on 2 April 1862. After having served in the Galway Militia, into which he had been commissioned as a second lieutenant in April 1879, he transferred to the 21st Hussars in January 1883, before finally transferring to the 8th (King's Royal Irish) Hussars in February 1883. He was promoted to captain in April 1888.

After being seconded for service with the Egyptian Army in January 1893, he served in Sudan in the Dongola Expedition in 1896 as a staff officer to Major General Sir Herbert Kitchener, and was present at the Battle of Ferkeh and the operations at Hafir. He was promoted to major in October 1897.

In 1899, he took part in the final defeat of the Khalifa as Assistant Adjutant general in charge of Intelligence, and was mentioned in despatches (dated 25 November 1899) by Colonel Wingate with the following words: ::quote I cannot speak in sufficiently strong terms of the excellence of the services performed by this officer. I invariably placed him in general command of all the mounted troops; his personal disregard for danger, intrepid scouting, and careful handling of men, all fit him for high command; his bold and successful seizure of the position in front of Fedil's camp, and his conduct of the fight before I came up, show him to possessed of exceptional qualities as a commander. ::

In recognition of his service in the Sudan, he received a brevet promotion to colonel on 14 March 1900, and a substantive promotion to lieutenant colonel after transferring to the 12th Lancers (later the 12th Royal Lancers).

During the Second Boer War Colonel Mahon led a flying column, 2,000 strong, consisting mainly of South African volunteers from Kimberley, which came to the Relief of Mafeking. The town, which had been under siege for seven months by Boer forces, was facing starvation. Mahon was appointed a Companion of the Order of the Bath (CB) for his services during the operations, and was invested with the order by King Edward VII on 2 June 1902 after his return to the United Kingdom.

Mahon was appointed a Fellow of the Royal Geographical Society in May 1902, and was briefly governor of Khartoum in 1903. In April 1904, after serving on half-pay, took command of a second class district in India, for which he was promoted to substantive colonel and re-promoted to temporary brigadier general while holding the appointment. In December 1906 he was, at the age of 44, promoted to major general while commanding a brigade in India. He was promoted to command a division in August 1909. He became colonel of his regiment, the 8th Hussars, in April 1910.

He was promoted to lieutenant general in September 1912, one of the youngest of his rank in the army.

::figure[src="https://upload.wikimedia.org/wikipedia/commons/b/bb/Bryan_Mahon_at_Salonica_1916.jpg" caption="Mahon at Salonika, 1916."] ::

During the First World War, which began in the summer of 1914, he commanded the 2nd (Sialkot) Cavalry Brigade and in October was assigned to be the first general officer commanding (GOC) of the 10th (Irish) Division, a Kitchener's Army formation composed of civilian volunteers for the army. Despite being "both a protestant and a unionist", it was hoped "that his public image would boost recruitment".

Mahon led his division during the Gallipoli campaign and, "like the majority of generals in this affair, did not emerge with his reputation intact". Furthermore, Hamilton chose to select Beauvoir De Lisle as the new commander of IX Corps, believing Mahon was not up to the task. Mahon, who "loathed" De Lisle, refused to serve under him and resigned his command.

In September he moved with the division to be head of the British Salonika Army to support Serbia at the onset of the Macedonian campaign. In 1916, after relinquishing command of the Army to Lieutenant-General George Milne, Mahon took up command of the Western Frontier Force in the Egyptian Expeditionary Force.

::figure[src="https://upload.wikimedia.org/wikipedia/commons/9/95/Le_général_Sarrail_et_le_général_Mahon_-Salonique-Médiathèque_de_l'architecture_et_du_patrimoine-_APOR030502.jpg" caption="Lieutenant-General Mahon and French General [[Maurice Sarrail]], along with other senior officers, at Salonika, March 1916."] ::

He was then appointed as the Commander-in-Chief, Ireland, in November 1916 in the lead up to the Irish War of Independence.

He retired from the British Army at the end of August 1921, after having been promoted to the rank of full general the month before.

After his retirement he was elected as a privy council member of the short-lived Senate of Southern Ireland. He was appointed to Seanad Éireann by the President of the Executive Council, W. T. Cosgrave, in 1922 and 1925.

His home, Mullaboden in Ballymore-Eustace, County Kildare, was burned down by the IRA in February 1923 during the Irish Civil War. The most valuable furniture had been removed to Dublin after the destruction of Palmerstown, the residence of Lord Mayo, another Kildare member of the Irish Senate, the previous month. A gramophone and typewriter were stolen and one of Mahon's tunics was taken and worn by one of the republicans for a photo taken of the squad that carried out the arson.

He and his wife, Lady Mahon, formerly Lady Amelia Milbanke, widow of Sir John Milbanke, V.C., were not home at the time. In 1923, "malicious injury claims" by the Mahons were filed with Kildare County Council in the amount of more than £60,000; they were awarded £21,341.

Mahon was elected to the Seanad in 1928, and served until his death at the relatively young age of 68 in September 1930.

References

{{London Gazette. (17 November 1896)
"The Senate of Southern Ireland, 1921".
"Members of the Senate of the Irish Free State.".
Murphy, David. "Mahon, Sir Bryan Thomas". [[Dictionary of Irish Biography]].
{{London Gazette. (29 April 1879)
{{London Gazette. (26 January 1883)
{{London Gazette. (13 February 1883)
{{London Gazette. (5 June 1888)
{{London Gazette. (21 February 1893)
{{London Gazette. (9 November 1897)
{{London Gazette. (30 January 1900)
{{London Gazette. (13 March 1900)
{{London Gazette. (21 August 1900)
{{London Gazette. (27 September 1901)
(3 June 1902). "The King's Levee and Investiture".
(14 May 1902). "Court Circular".
{{London Gazette. (5 July 1904)
{{London Gazette. (7 December 1906)
{{London Gazette. (9 November 1909)
{{London Gazette. (8 April 1910)
{{London Gazette. (1 October 1912)
{{London Gazette. (6 October 1914)
"Who's Who". Gallipoli Association.
(21 November 2007). "Sir Archibald Murray's Despatch".
Macardle, Dorothy. (1965). "The Irish Republic". Farrar, Straus and Giroux.
{{London Gazette. (30 January 1917)
{{London Gazette. (30 August 1921)
{{London Gazette. (22 February 1921)
(6 December 1922). "President's nominees for Seanad". Houses of the Oireachtas.
"THE BURNING OF MULLABODEN HOUSE".
"Bryan Mahon". Oireachtas Members Database.

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