Baron O'Hagan, of Tullahogue in the County of Tyrone, is a title in the Peerage of the United Kingdom

Peerage of the United Kingdom

The Peerage of the United Kingdom comprises most peerages created in the United Kingdom of Great Britain and Ireland after the Act of Union in 1801, when it replaced the Peerage of Great Britain...

. It was created on 14 June 1870 for Sir Thomas O'Hagan

Thomas O'Hagan, 1st Baron O'Hagan

Thomas O'Hagan, 1st Baron O'Hagan KP, PC, QC , was an Irish lawyer and judge. He served as Lord Chancellor of Ireland from 1868 to 1874 and again from 1880 to 1881.-Background and education:...

, then Lord Chancellor of Ireland

Lord Chancellor of Ireland

The office of Lord Chancellor of Ireland was the highest judicial office in Ireland until the establishment of the Irish Free State in 1922. From 1721 to 1801 it was also the highest political office of the Irish Parliament.-13th century:...

. His younger son, the third Baron, served as a Lord-in-Waiting

Lord-in-Waiting

Most Lords in Waiting are Government whips in the House of Lords who are members of the Royal Household of the Sovereign of the United Kingdom. As members of the Royal Household their duties are nominal, though they are occasionally required to meet visiting political and state leaders on visits...

 (government whip in the House of Lords

House of Lords

The House of Lords is the upper house of the Parliament of the United Kingdom. Like the House of Commons, it meets in the Palace of Westminster....

) from 1907 to 1910 in the Liberal administrations

Liberal Government 1905-1915

With the fall of Arthur Balfour's Conservative government in the United Kingdom in December 1905, the Liberals under Sir Henry Campbell-Bannerman were called in to form a government. In the subsequent election, the Liberals won an enormous majority...

 of Sir Henry Campbell-Bannerman and H. H. Asquith

H. H. Asquith

Herbert Henry Asquith, 1st Earl of Oxford and Asquith, KG, PC, KC served as the Liberal Prime Minister of the United Kingdom from 1908 to 1916...

 and was later a Deputy Speaker of the House of Lords. In 1909 Lord O'Hagan assumed by Royal license the additional surname of Towneley, which was that of his maternal grandfather. the title is held by his grandson, the fourth Baron, who succeeded in 1961. He is the son of the Hon. Thomas Anthony Edward Towneley Strachey (d. 1955). Lord O'Hagan was a Member of the European Parliament

Member of the European Parliament

A Member of the European Parliament is a person who has been elected to the European Parliament. The name of MEPs differ in different languages, with terms such as europarliamentarian or eurodeputy being common in Romance language-speaking areas.When the European Parliament was first established,...

 for Devon from 1973 to 1975 and again from 1979 to 1994, first as an independent and later as a Conservative

Conservative Party (UK)

The Conservative Party, formally the Conservative and Unionist Party, is a centre-right political party in the United Kingdom that adheres to the philosophies of conservatism and British unionism. It is the largest political party in the UK, and is currently the largest single party in the House...

. He assumed in 1938 by deed poll

Deed poll

A deed poll is a legal document binding only to a single person or several persons acting jointly to express an active intention...

 the additional Christian name of Towneley and the surname of Strachey in lieu of his patronymic. Strachey was the surname of his maternal grandfather Edward Strachey, 1st Baron Strachie

Edward Strachey, 1st Baron Strachie

Edward Strachey, 1st Baron Strachie PC , known as Sir Edward Strachey, Bt, between 1901 and 1911, was a British Liberal politician. He was a member of the Liberal administrations of Sir Henry Campbell-Bannerman and H. H...

.

Barons O'Hagan (1870)

• Thomas O'Hagan, 1st Baron O'Hagan
  Thomas O'Hagan, 1st Baron O'Hagan
  Thomas O'Hagan, 1st Baron O'Hagan KP, PC, QC , was an Irish lawyer and judge. He served as Lord Chancellor of Ireland from 1868 to 1874 and again from 1880 to 1881.-Background and education:...
  
   (1812–1885)
• Thomas Towneley O'Hagan, 2nd Baron O'Hagan
  Thomas Towneley O'Hagan, 2nd Baron O'Hagan
  Thomas Towneley O'Hagan, 2nd Baron O'Hagan , was a British peer and soldier.He was the eldest son of Thomas O'Hagan, the Lord Chancellor of Ireland in Gladstone's first two governments, and of Alice Towneley from Lancashire's prominent Towneley family, from whom he inherited considerable land...
  
   (1878–1900)
• Maurice Herbert Towneley Towneley-O'Hagan, 3rd Baron O'Hagan
  Maurice Towneley-O'Hagan, 3rd Baron O'Hagan
  Maurice Herbert Towneley Towneley-O'Hagan, 3rd Baron O'Hagan , was a British Liberal and later Conservative politician....
  
   (1882–1961)
• Charles Towneley Strachey, 4th Baron O'Hagan
  Charles Strachey, 4th Baron O'Hagan
  Charles Towneley Strachey, 4th Baron O'Hagan is a British Conservative party politician.The grandson of Maurice Towneley-O'Hagan, 3rd Baron O'Hagan, he inherited the family title at the age of 16 on his grandfather's death in 1961, his father the Hon. Thomas Anthony Edward Towneley Strachey having...
  
  (b. 1945)