Bryan Magennis, 5th Viscount Iveagh ( 1655 – September 1692) was an Irish Jacobite peer and soldier. Magennis was the son of Hugh Magennis, 4th Viscount Iveagh and Rose O'Neill, and in 1684 he succeeded to his father's

peerage A peerage is a legal system historically comprising various hereditary titles (and sometimes Life peer, non-hereditary titles) in a number of countries, and composed of assorted Imperial, royal and noble ranks, noble ranks. Peerages include: A ...

. He was a supporter of

James II of England James II and VII (14 October 1633 – 16 September 1701) was King of England and Monarchy of Ireland, Ireland as James II and King of Scotland as James VII from the death of his elder brother, Charles II of England, Charles II, on 6 February 1 ...

following the

Glorious Revolution The Glorious Revolution, also known as the Revolution of 1688, was the deposition of James II and VII, James II and VII in November 1688. He was replaced by his daughter Mary II, Mary II and her Dutch husband, William III of Orange ...

, and in 1689 he raised two regiments in support of the Jacobite cause – one of dragoons and one of infantry. In May 1689 he was summoned to the

Irish House of Lords The Irish House of Lords was the upper house of the Parliament of Ireland that existed from medieval times until the end of 1800. It was also the final court of appeal of the Kingdom of Ireland. It was modelled on the House of Lords of Englan ...

in the brief

Patriot Parliament Patriot Parliament is the name commonly used for the Irish Parliament session called by King James II during the Williamite War in Ireland which lasted from 1688 to 1691. The first since 1666, it held only one session, which lasted from 7 May ...

called by James II.O'Hart, John
The Irish Parliament of King James the Second in 1689
''Irish Pedigrees: or the Origin and Stem of the Irish Nation'' (5th Ed., 1892), Volume 2. Retrieved 16 February 2023. He was also appointed

Lord Lieutenant of Down This is a list of '' lords lieutenants of County Down''. There were lieutenants of counties in Ireland until the reign of James II, when they were renamed governors. The office of Lord Lieutenant was recreated on 23 August 1831. Governors * B ...

. Magennis served as colonel of his regiment of foot during the Siege of Limerick. He was

attainted In English criminal law, attainder was the metaphorical "stain" or "corruption of blood" which arose from being condemned for a serious capital crime (felony or treason). It entailed losing not only one's life, property and hereditary titles, but ...

in 1691. Upon the conclusion of the

Williamite War in Ireland The Williamite War in Ireland took place from March 1689 to October 1691. Fought between Jacobitism, Jacobite supporters of James II of England, James II and those of his successor, William III of England, William III, it resulted in a Williamit ...

, Magennis was commissioned in March 1692 to raise a regiment of five of companies of Irish Catholics, each of 100 soldiers, to serve in the army of

Leopold I, Holy Roman Emperor Leopold I (Leopold Ignaz Joseph Balthasar Franz Felician; ; 9 June 1640 – 5 May 1705) was Holy Roman Emperor, King of Hungary, List of Croatian monarchs, Croatia, and List of Bohemian monarchs, Bohemia. The second son of Ferdinand III, Holy Rom ...

. Magennis and his regiment left

Cork "Cork" or "CORK" may refer to: Materials * Cork (material), an impermeable buoyant plant product ** Stopper (plug), or "cork", a cylindrical or conical object used to seal a container *** Wine cork an item to seal or reseal wine Places Ireland * ...

on 31 May 1692 for

Hamburg Hamburg (, ; ), officially the Free and Hanseatic City of Hamburg,. is the List of cities in Germany by population, second-largest city in Germany after Berlin and List of cities in the European Union by population within city limits, 7th-lar ...

. From Hamburg, they were sent to fight in

Hungary Hungary is a landlocked country in Central Europe. Spanning much of the Pannonian Basin, Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croatia and ...

against the Turks, but almost all, including Magennis, had died of disease by the end of 1692. Magennis had married Margaret Burke in 1689. The marriage was likely childless.

References

{{DEFAULTSORT:Mountgarret, Richard Butler, 5th Viscount Year of birth uncertain 1692 deaths 17th-century Irish nobility Irish Jacobites Irish soldiers Irish soldiers in the army of James II of England Lord-lieutenants of Down Members of the Irish House of Lords Imperial Army (Holy Roman Empire) personnel People convicted under a bill of attainder Viscounts in the Peerage of Ireland