Question: What nickname was shared by Patrick Cotter O'Brien and Charles Byrne?

full_context: Document 1: Manute Bol: Manute Bol ( ; October 16, 1962 – June 19, 2010) was a Sudanese-born American basketball player and political activist. Listed at 7 ft tall, he was the tallest player in the history of the National Basketball Association, along with Gheorghe Mureșan. He was officially measured and listed at 7 ft tall in the Guinness Book of World Records. He is believed to have been born on October 16, 1962, in either Turalei or Gogrial, Sudan (now South Sudan). He was the son of a Dinka tribal elder who gave him the name "Manute," which means "special blessing."
Document 2: The Giant, O'Brien: The Giant, O'Brien is a novel by Hilary Mantel, published in 1998. It is a fictionalized account of Irish giant Charles Byrne (O'Brien) and Scottish surgeon John Hunter.
Document 3: Brian O'Nolan: Brian O'Nolan (Irish: "Brian Ó Nualláin" ; 5 October 1911 – 1 April 1966) was an Irish novelist, playwright and satirist, considered a major figure in twentieth century Irish literature. Born in Strabane, County Tyrone, he is regarded as a key figure in postmodern literature. His English language novels, such as "At Swim-Two-Birds", and "The Third Policeman", were written under the "pen name" Flann O'Brien. His many satirical columns in "The Irish Times" and an Irish language novel "An Béal Bocht" were written under the name Myles na gCopaleen.
Document 4: Bao Xishun: Bao Xishun (also known as Xi Shun; born 1951) is a herdsman from Inner Mongolia, China, recognized by "Guinness World Records" as one of the world's tallest living men. On September 17, 2009, Turkey's Sultan Kösen overtook Bao Xishun as the tallest living man in the world, when he was measured by Guinness World Records, standing 2.51 m tall.
Document 5: Alam Channa: Haji Mohammad Alam Channa (1953 in Sehwan, Sindh province, Pakistan – 2 July 1998 in New York City) was one of the tallest living people. According to the Guinness Book of World Records, the tallest living man in the world (between 1982 and 1998), was Pakistan’s Mohammad Alam Channa. Before his death in 1998, Channa was reported to be 7ft 8 inches tall.
Document 6: Cardiff Giant: The Cardiff Giant was one of the most famous hoaxes in United States history. It was a 10 ft purported "petrified man" uncovered on October 16, 1869, by workers digging a well behind the barn of William C. "Stub" Newell in Cardiff, New York. Both it and an unauthorized copy made by P.T. Barnum are still on display.
Document 7: Patrick Cotter O'Brien: Patrick Cotter O'Brien (19 January 1760 – 8 September 1806) was the first of only seventeen people in medical history to stand at a verified height of eight feet (2.44 m) or more. O'Brien was born in Kinsale, County Cork, Ireland. His real name was Patrick Cotter and he adopted O'Brien as his stage name in the sideshow circus, claiming descent from the legendarily gigantic Brian Boru. He was also known as the "Bristol Giant" and the "Irish Giant". Another giant of this period, Charles Byrne, also claimed to be an O'Brien.
Document 8: Patrick Cotter (croquet player): Edmond Patrick Charles Cotter (24 September 1904 - 8 March 1996) was a croquet player from Ireland. Cotter was one of the most successful croquet players in the 1950s and 1960s winning the President’s Cup six times (1949, 1950, 1952, 1953, 1956 and 1960), the Open Championship three times (1955, 1958 and 1962) and the Men's Championship four times (1952, 1954, 1963 and 1969). He also won the Open Doubles Championship on ten occasions (1954, 1955, 1958, 1959, 1961-1965 and 1969) on each occasion being partnered by John Solomon.
Document 9: Joseph Merrick: Joseph Carey Merrick (5 August 1862 – 11 April 1890; often incorrectly called "John Merrick") was an English man with very severe deformities who was first exhibited at a freak show as the "Elephant Man", and then went to live at the London Hospital after he met Frederick Treves, so becoming well known in London society. Merrick was born in Leicester, and began to develop abnormally during the first few years of his life: his skin appeared thick and lumpy, he developed enlarged lips, and a bony lump grew on his forehead, one of his arms and both of his feet became enlarged and at some point during his childhood he fell and damaged his hip, resulting in permanent lameness. When he was 9, his mother died from bronchopneumonia, and his father soon remarried. Merrick left school at the age of 13 and had difficulty finding employment. Rejected by his father and stepmother, he left home. In late 1879, Merrick, aged 17, entered the Leicester Union Workhouse.
Document 10: Cordwood Pete: Cordwood Pete is a fictional character who was the younger brother of legendary lumberjack Paul Bunyan. While Paul Bunyan is said to have been a giant of a man, his younger brother Peter Bunyan was a mere 4 ft in height. Pete's growth was apparently stunted by the fact that he could never get enough flapjacks at the breakfast table because Paul ate everything in sight.
Document 11: Saint Patrick: Saint Patrick (Latin: "Patricius" ; Irish: "Pádraig" ] ; Welsh: "Padrig" ) was a fifth-century Romano-British Christian missionary and bishop in Ireland. Known as the "Apostle of Ireland", he is the primary patron saint of Ireland, along with saints Brigit of Kildare and Columba. He is also venerated in the Anglican Communion, the Old Catholic Church and in the Eastern Orthodox Church as equal-to-the-apostles and "Enlightener of Ireland".
Document 12: Charles Byrne (giant): Charles Byrne (1761–1783) or "The Irish Giant", was a man regarded as a curiosity or freak in London in the 1780s. Byrne's exact height is of some conjecture. Some accounts refer to him as being 8 ft to 8 ft tall, but skeletal evidence places him at just over 7 ft .
Document 13: Patrick Cotter (Irish poet): Patrick Cotter is an Irish poet based in Cork city. Born in 1963, he has published several collections of poetry. He is currently the Artistic Director of the Munster Literature Centre.
Document 14: Conor Cruise O'Brien: Conor Cruise O'Brien (3 November 1917 – 18 December 2008) often nicknamed "The Cruiser", was an Irish politician, writer, historian and academic. His opinion on the role of Britain in Ireland and in Northern Ireland changed during the 1970s, in response to the outbreak of The Troubles. He saw opposing nationalist and unionist traditions as irreconcilable and switched from a nationalist to a unionist view of Irish politics and history. O'Brien's outlook was always radical and the positions he took were seldom orthodox. He summarised his position as intending "to administer an electric shock to the Irish psyche".
Document 15: Keith Martin (heavy person): Keith Martin (1969 or 1970 – December 5, 2014), one of the world heaviest lived people, was famous for being at one point the UK’s heaviest man, weighing approximately 980 lbs at his peak. Keith Martin was given a gastric bypass operation by the NHS, and had lost over 50% of his body weight.
ground_truth: Irish Giant