Lord Ardilaun

Arthur Edward Guinness, 1st Baron Ardilaun, 2nd Baronet (1 November 1840 – 20 January 1915), known as Sir Arthur Guinness, Bt, between 1868 and 1880, was a British businessman, politician, and philanthropist, best known for giving St Stephen's Green to the people of Dublin.

Guinness was born at St Anne's, Raheny, near Dublin, the eldest son of Sir Benjamin Guinness, 1st Baronet, and elder brother of Edward Guinness, 1st Earl of Iveagh. He was the great-grandson of Arthur Guinness. He was educated at Eton and Trinity College Dublin, and in 1868 succeeded his father as second Baronet.

In 1868 Guinness was elected Conservative Member of Parliament for the City of Dublin, a seat he held for only a year. His election was voided because of his election agent's unlawful efforts, which the court found were unknown to him. He was re-elected at the next election in 1874.

A supporter of Disraeli's "one nation" conservatism, his politics were typical of "constructive unionism", the belief that the union between Ireland and Britain should be more beneficial to the people of Ireland after centuries of difficulties. In 1872 he was a sponsor of the "Irish Exhibition" at Earlsfort Terrace in Dublin, which was arranged to promote Irish trade. Correcting a mistake about the exhibition in the Freeman's Journal led to a death threat from a religious extremist, which he did not report to the police. In the 1890s he supported the Irish Unionist Alliance.

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