Mornington House was the Dublin social season georgian residence of the Earls of Mornington. It is located in Merrion Street, close to Leinster House, then city residence of the Dukes of Leinster and now seat of the Irish parliament, Oireachtas Éireann. Dublin (Irish: Baile Átha Cliath),is the capital and largest city of the Republic of Ireland, located near the midpoint of Irelands east coast, at the mouth of the River Liffey and at the centre of the Dublin region. ... The title Earl of Mornington was created in the Peerage of Ireland in 1760 for Garret Wellesley. ... Leinster House The former palace of the Duke of Leinster. ... Arms of the Duke of Leinster The Duke of Leinster (named after Leinster and, unlike the Province, pronounced Linster) is Irelands premier peer. ... The Oireachtas is the National Parliament of the Republic of Ireland1. ...

The son of the Garret Wesley, 1st Earl of Mornington, Arthur Wellesley, 1st Duke of Wellington, later a general and British Prime Minister, is sometimes said to have been born there, through other sources suggest he was born in the family's country seat, Dangan Castle, near Trim in County Meath. Garret Wesley, 1st Earl of Mornington (19 July 1735–22 May 1781) was an Irish politician and composer, best known today for fathering several distinguished British politicians. ... The Most Noble Arthur Wellesley, 1st Duke of Wellington, KG, GCB, PC, FRS (1 May 1769–14 September 1852) was an Anglo-Irish soldier and statesman, widely considered one of the leading military and political figures of the 19th century. ... In the United Kingdom, the Prime Minister is the head of government, exercising many of the executive functions nominally vested in the Sovereign, who is head of state. ... For other meanings, see trim (disambiguation). ... Meath (An Mhí in Irish) is a county in the Republic of Ireland, often informally called The Royal County. ...

The house was later sold and for most of the twentieth century was the headquarters of the Irish Land Commission. For some years it was considered as a possible residence for the Taoiseach (prime minister) of Ireland. It was however sold in the 1990s and is now a popular international hotel. (19th century - 20th century - 21st century - more centuries) Decades: 1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s The 20th century lasted from 1901 to 2000 in the Gregorian calendar (often from (1900 to 1999 in common usage). ... The Irish Land Commission was created in 1881 as a rent fixing commission by the Irish Land Act 1881. ... The Taoiseach (plural: Taoisigh) or, more formally, An Taoiseach, is the head of government of the Republic of Ireland and the leader of the Irish cabinet1. ... // Events and trends The 1990s are generally classified as having moved slightly away from the more conservative 1980s, but keeping the same mind-set. ... A hotel is an establishment that provides lodging, usually on a short-term basis. ...