Viscount Doneraile is a title that has been created twice in the Peerage of Ireland

Peerage of Ireland

The Peerage of Ireland is the term used for those titles of nobility created by the English and later British monarchs of Ireland in their capacity as Lord or King of Ireland. The creation of such titles came to an end in the 19th century. The ranks of the Irish peerage are Duke, Marquess, Earl,...

, both times for members of the St Leger family. It was first created in 1703 for Arthur St Leger, along with the subsidiary title of Baron Kilmayden, also in the Peerage of Ireland. This creation became extinct in 1767 on the death of the fourth Viscount. However, his sister's son. St Leger Aldworth, succeeded to the St Leger estates and assumed the surname of St Leger in lieu of his patronymic. He notably represented Doneraile

Doneraile (Parliament of Ireland constituency)

Doneraile was a constituency represented in the Irish House of Commons until 1800.-History:In the Patriot Parliament of 1689 summoned by King James II, Doneraile was represented with two members.-1689–1801:-Bibliography:...

 in the Irish Parliament from 1761 to 1776. The latter year he was raised to the Peerage of Ireland as Baron Doneraile and in 1785 the viscountcy was revived and he was created Viscount Doneraile, also in the Peerage of Ireland.

His grandson, the third Viscount, sat 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....

 as an Irish Representative Peer

Representative peer

In the United Kingdom, representative peers were those peers elected by the members of the Peerage of Scotland and the Peerage of Ireland to sit in the British House of Lords...

 from 1830 to 1854. His son, the fourth Viscount, was an Irish Representative Peer between 1855 and 1887. He was succeeded by his second cousin, the fifth Viscount. His son, the sixth Viscount, served as Mayor of the City of Westminster

City of Westminster

The City of Westminster is a London borough occupying much of the central area of London, England, including most of the West End. It is located to the west of and adjoining the ancient City of London, directly to the east of the Royal Borough of Kensington and Chelsea, and its southern boundary...

. On the death of his younger brother, the seventh Viscount, this line of the family also failed and he was succeeded by his second cousin once removed, the eighth Viscount. the titles are held by the latter's grandson, the tenth Viscount, who succeeded his father in 1983. He lives in California

California

California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

.

The title is pronounced "Dunnaral". The family surname is pronounced "Sentleger".

Viscounts Doneraile, First Creation (1703)

• Arthur St Leger, 1st Viscount Doneraile (d. 1727)
• Arthur St Leger, 2nd Viscount Doneraile (1694–1734)
• Arthur Mohun St Leger, 3rd Viscount Doneraile (1718–1750)
• Hayes St Leger, 4th Viscount Doneraile (1702–1767)

Viscounts Doneraile, Second Creation (1785)

• St Leger St Leger, 1st Viscount Doneraile (d. 1787)
• Hayes St Leger, 2nd Viscount Doneraile (1755–1819)
• Hayes St Leger, 3rd Viscount Doneraile (1786–1854)
• Hayes St Leger, 4th Viscount Doneraile (1818–1887)
• Richard Arthur St Leger, 5th Viscount Doneraile (1825–1891)
• Edward St Leger, 6th Viscount Doneraile (1866–1941)
• Hugh St Leger, 7th Viscount Doneraile (1869–1956)
• Algernon Edward St Leger, 8th Viscount Doneraile (1878–1957)
• Richard St John St Leger, 9th Viscount Doneraile (1923–1983)
• Richard Allen St Leger, 10th Viscount Doneraile (b. 1946)

The heir apparent

Heir apparent

An heir apparent or heiress apparent is a person who is first in line of succession and cannot be displaced from inheriting, except by a change in the rules of succession....

is the present holder's son Hon. Nathaniel Warham Robert St John St Leger (b. 1971)