Marquis Sligo

The title of Marquis Sligo was created on December 29, 1800 for John Brown, 3rd Earl of Altamont (1756-1809). The title of Marquis Sligo has auxiliary titles: Baron Mount Eagle from Westport in Mayo County (created September 18, 1760 ), Viscount Westport from Westport in Mayo County (created August 24, 1768 ), Count Altamont from Mayo County (created in 1800 ) and Baron Montigle from Westport in Mayo County (established February 20, 1806 ). All of these titles are the Pearsty of Ireland , with the exception of the barony of Montigl, which is part of the United Kingdom's Pearsty system. The title of Baron Montigl gave the Marquises of Sligo the automatic right to a seat in the House of Lords of Great Britain before the adoption of the 1999 Act of the House of Lords . The 6th Marquis of Sligo received the title of Count Clanricard in 1916 .

The Browns family comes from Colonel John Brown, the youngest son of Sir John Brown, 1st Baronet (d. 1670 ), from the Nile to Mayo County . The eldest son of the latter, George Brown, 2nd Baronet (d. 1698 ), became the ancestor of the Barons Kilmayne. The title of baronet was created in 1636 for Colonel John Brown. John Brown (1709-1776), grandson of Colonel John Brown, represented Castlebar in the Irish House of Commons (1744-1760). He received the titles of Baron Mount Eagle (1760), Viscount Westport (1768) and Earl of Altamont (1771). He was succeeded by his eldest son, Peter Brown, 2nd Earl of Altamont (1731-1780), representing Mayo County in the Irish Parliament (1761-1768). He was succeeded by his eldest son, John Denise Brown, 3rd Earl of Altamont (1756-1809), who also represented Jamestown in the Irish House of Commons (1776-1780). In 1800, the latter was elected one of the 28 Irish peers-representatives in the House of Lords of Great Britain and received the title of Marquis Sligo .

In 1806, John Brown, 1st Marquis of Sligo, received the title of Baron Montigl in the United Kingdom’s Peersty system, which gave him and his descendants an automatic seat in the House of Lords of Great Britain . He was succeeded by his son, Howe Peter Brown, 2nd Marquis of Sligo (1788-1845). He served as Lord Lieutenant of Mayo County (1831–1845) and Governor of Jamaica (1834–1836). Lord Sligo married Catherine de Burgh, the eldest daughter of John Thomas de Burgh, 13th Earl of Clanricard (1744-1808).

In 1800, Lord Clanricard received the new title of Count Clanricard with the right to inherit for the male descendants of his two daughters. Lord Sligo's youngest son, John Thomas Brown, 4th Marquis of Sligo (1824–1903), represented Mayo County in the House of Commons of Great Britain (1857–1868). His nephew , George Ulic Brown, 6th Marquis of Sligo (1856–1935), inherited the county of Clanricard (Creation of 1800), in 1916 after the death of his cousin Hubert George de Burg-Canning, 2nd Marquis of Clanricard (1832– 1916).

As of 2014 , the owner of the marquisate was his grand-nephew, Sebastian Ulik Brown, 12th Marquis Sligo (born 1964 ), who on July 13, 2014 inherited his cousin , Jeremy Ulic Brown, 11th Marquis Sligo (1939-2014 ) The current Marquis of Sligo is a property consultant based in Sydney, Australia .

Family residence - Westport House , on the outskirts of Westport in Mayo County in Ireland. After the death of the 11th Marquis, Sligo Westport House was taken over by his five daughters, in accordance with legislation passed by the Irish Senate in 1993 .

The names Mount Eagle and Altamont come from Mount Kroh Patrick in the vicinity of Westport in Mayo County .

• 1771-1776: John Brown, 1st Earl of Altamont (c. 1709 - July 4, 1776), son of Peter Brown
• 1776-1780: Peter Brown, 2nd Earl of Altamont (c. 1731 - December 28, 1780), son of the previous
• 1780-1809: John Denise Brown, 3rd Earl of Altamont (June 11, 1756 - January 2, 1809), the eldest son of the previous one, Marquis Sligo since 1800.

• 1800-1809: John Denise Brown, 1st Marquis of Sligo (June 11, 1756 - January 2, 1809), the eldest son of Peter Brown, 2nd Earl of Altamnot
• 1809-1845: Howe Peter Brown, 2nd Marquis of Sligo (May 18, 1788 - January 26, 1845), the only son of the previous
• 1845-1896: George John Brown, 3rd Marquis of Sligo (January 31, 1820 - August 30, 1896), the eldest son of the previous
• 1896-1903: John Thomas Brown, 4th Marquis of Sligo (September 10, 1824 - December 30, 1903), third son of the 2nd Marquis of Sligo
• 1903-1913: Henry Ulic Brown, 5th Marquis of Sligo (March 14, 1831 - February 24, 1913), fourth son of the 2nd Marquis of Sligo
• 1913-1935: George Ulic Brown, 6th Marquis of Sligo (September 1, 1856 - February 26, 1935), the eldest son of the previous
• 1935-1941: Ulic John Brown, 7th Marquis of Sligo (March 30, 1898 - January 7, 1941), the only son of the previous
• 1941–1951: Arthur Howe Brown, 8th Marquis of Sligo (May 8, 1867 - May 28, 1951), third son of the 5th Marquis of Sligo
• 1951-1952: Terence Morris Brown, 9th Marquis of Sligo (September 28, 1873 - July 28, 1952), fourth son of the 5th Marquis of Sligo
• 1952-1991: Denise Edward Brown, 10th Marquis of Sligo (December 13, 1908 - September 11, 1991), eldest son of Captain Alfred Eden Brown (1878-1918), grandson of the 5th Marquis of Sligo
• 1991—2014: Jeremy Ulic Brown, 11th Marquis of Sligo (June 4, 1939 - July 13, 2014), the only son of the previous
• 2014 - present: Sebastian Ulik Brown, 12th Marquis Sligo (born May 27, 1964), the only son of Captain Ulic Brown (1915-1979), grandson of Captain Alfred Eden Brown (1878-1918) and great-grandson of the 5th Marquis Sligo
  • Heir: Christopher Ulic Brown, Earl of Altamont (born 1988), son of the previous one.

• Kidd, Charles, Williamson, David (editors). Debrett's Peerage and Baronetage (1990 edition). New York: St Martin's Press, 1990.
• Leigh Rayment's Peerage Pages
• Lundy, Darryl. "FAQ" . The Peerage .
• Westport house website