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Dempsey

Dempsey is a surname of Irish origin.

Background
Dempsey is an anglicised form of Ó Díomasaigh, 'descendant of Díomasach'; this personal name is the Irish adjective díomasach 'proud'. The family originated in the Kingdom of Uí Failghe. According to John Grenham: Another source states: According to historian C. Thomas Cairney, the O'Dempseys were one of the chiefly families of the Ui Failghe who in turn were a tribe from the Dumnonii or Laigin who were the third wave of Celts to settle in Ireland during the first century BC. ==Descent==
Descent
An Ó Diomasaigh genealogy records the following: Flann m. Máel Ruanaid m. Cellaich m. Máel Augra m. Conchobuir m. Áeda m. Tomaltajich m. Flaind m. Díumasaich m. Congaile m. Forannáin m. Congaile m. Máel h-Umai m. Cathail m. Bruidge m. Nath Í m. Rosa Failgi. The final person may be identical with Failge Berraide (fl. 507–514), a king of the Uí Failghe and of Laigin descent. ==Dempseys in the annals==
Dempseys in the annals
The Irish annals list a number of members of the family: • 789: Áedh [grandfather of Máelaugrai] was slain by Óengus son of Mugrón, king of Uí Failghe, in the oratory of Kilclonfert. • 1141: Donnchadh, son of Goll Gaibhle, i.e. Ua Conchobhair Failghe, was killed by the Uí Failghe themselves, i.e. the Clann-Maelughra. • 1161: Domhnall, son of Conghalach, son of Cuaifne Ua Conchobhair Failghe, Tanist of Uí Failghe, was slain by the Clann-Maelughra. • 1164: Maelseachlainn Ua Conchobhair Failghe, was slain by the Clann-Maelughra. • 1193: Diarmait, son of Cubrogam Ua Diumasaigh, chief of Clann-Mailighra and king of Uí Failghe for a long time, died. • 1383: Dermot O'Dempsy, Lord of Kinel-Maoilughra, was slain by the English. • 1394: Thomas O'Dempsy, heir to the lordship of Clann-Maoilughra, was slain by the English. ==Other Dempsey families==
Other Dempsey families
An unrelated family, rendered in Irish as Mac Diomasaigh, are found in County Antrim and its neighbouring counties. ==Bearers of the name==
Bearers of the name
Notable people with the surname Dempsey include: • Amy Dempsey (born 1963), American art historian • Bill Dempsey (1942–2026), former Australian rules footballer • Bill Dempsey (footballer) (1896–1967), English footballer • Candace Dempsey, American author, journalist and travel writer • Cedric Dempsey (1932–2025), American sports executive • Chester Dempsey (1896–1969) American farmer and politician • Clint Dempsey (born 1983), American soccer player • Courtenay Dempsey (born 1987), Australian rules footballer • Damien Dempsey, Irish singer and songwriter • Dan Dempsey, Australian rugby league footballer • Denis Dempsey (1826–1896), Irish soldier, recipient of the Victoria Cross • Donald Dempsey (c. 1932 – 2005), American recording executive • Ed Dempsey, Canadian ice hockey coach • Frank Dempsey (1925–2013), American football player • Gary Dempsey, multiple people • George Dempsey, multiple people • Girvan Dempsey (born 1975), Irish rugby union footballer • Henry Dempsey, pilot who survived being sucked out of an airborne Beechcraft 99 aircraft in 1987 • Holli Dempsey, British actor • Ian Dempsey (born 1961), Irish radio presenter • Jack Dempsey (1895–1983), American boxer • Jack Dempsey (disambiguation), other people with this name • James Dempsey (disambiguation), multiple people • Jillian Dempsey (born 1991), American ice hockey player • Jillian Lee Dempsey, American inorganic chemist • John Dempsey, multiple people • Judy Dempsey (born 1956), Irish journalist and researcher • Julia Dempsey (known as Sister Mary Joseph Dempsey), American religious sister, nurse and hospital administrator • Kyle Dempsey (born 1995) English footballer • Lawrence Dempsey (died 1690), an Irish soldier • Lorcan Dempsey (born 1958), Irish library information expert • Luke Dempsey (born 1979/1980), Irish Gaelic football manager • Mark Dempsey, multiple people • Martin Dempsey (born 1952), American general, 18th chairman, US Joint Chiefs of Staff • Michael Dempsey, multiple people • Mick Dempsey, Irish Gaelic footballer • Miles Dempsey (1896–1969), British general of World War II • Nathan Dempsey (born 1974), Canadian ice hockey player • Nick Dempsey (born 1980), English windsurfer • Nicola Dempsey (fl. 2015–), one half of comedy duo Flo and JoanNoel Dempsey (born 1953), Irish politician • Nonpareil Dempsey (1862–1895), ring name of Irish-born American boxer John Kelly • Ollie Dempsey (born 2003) Australian rules footballer • Patrick Dempsey (born 1966), American actor and race car driver • Paul Dempsey (born 1976), Australian rock musician • Ray Dempsey, Irish Gaelic footballer • Rey Dempsey, retired American college football coach • Richard Dempsey (born 1974), English actor • Rick Dempsey (born 1949), retired American baseball player • Rosemary Dempsey, American feminist activist • Rosie Dempsey (fl. 2015–), one half of comedy duo Flo and JoanSandra Dempsey, Canadian playwright • Sandy Dempsey (1949–1975), actress • Shawna Dempsey, Canadian performance artist • S. Wallace Dempsey (1862–1949), American Republican politician, Congressman 1915–1931 • Thomas Dempsey (disambiguation) or Tom Dempsey, multiple people • Tommy Dempsey, American college basketball coach • Tony Dempsey (politician) (born 1944), Irish Fianna Fáil politician, TD 2002–2007 • Travis Demsey, born Travis Dempsey, Australian musician • Wally Dempsey (1944–2024), American football player • Guy Dempsey, American Historian and Author As a given name:Dempsey Bob (born 1948), Canadian woodcarver • Dempsey Burges (1751–1800), American politician, Congressman 1795–1799 • Dempsey Wilson (1927–1971), American racecar driver • P. Dempsey Tabler (1876–1956), American actor, athlete and businessman Fictional Characters: • "Tank" Dempsey (born before 1917), fictional U.S Marine from Call of Duty: Black Ops's Zombies mode • Zach Dempsey, a character in the novel and Netflix series 13 Reasons Why ==See also==
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