Conor Myles John O'Brien, 18th Baron Inchiquin, is the holder of a hereditary peerage 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,...

, as well as Chief of the Name of O'Brien and Prince of Thomond in the Gaelic Irish nobility

Irish nobility

This article concerns the Gaelic nobility of Ireland from ancient to modern times. It only partly overlaps with Chiefs of the Name because it excludes Scotland and other discussion...

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He is the son of Fionn Myles Maryons O'Brien and Josephine Bembaron. He became baron on the death of his uncle Phaedrig O'Brien, 17th Baron Inchiquin

Phaedrig O'Brien, 17th Baron Inchiquin

Phaedrig Lucius Ambrose O'Brien was the 17th Baron Inchiquin .He married Vera Maud Winter, the daughter of Reverend Clifton Samuel Winter on 19 February 1945.O'Brien died in 1982....

 in 1982.

In 1998, he visited Antioch, California

Antioch, California

Antioch is a city in Contra Costa County, California. Located in the East Bay region of the San Francisco Bay Area along the San Joaquin-Sacramento River Delta, it is a suburb of San Francisco and Oakland. The city's population was 102,372 at the U.S...

for St. Patrick's Day and Antioch's first St. Patrick's Day Crinniu, and the city's council proclaimed "Sir Conor O'Brien Day".