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

Context paragraphs:
1884 Cleveland Blues season: The 1884 Cleveland Blues season was a season in American baseball.  It involved the Blues finishing the season at 35–72, seventh place in the National League.  After the season, the team was purchased by Charles Byrne for $10,000 and shut down, many of the players being added to Byrne's Brooklyn Grays team.

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 .

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.

1883 Brooklyn Grays season: The Brooklyn baseball club was formed in 1883 by real estate magnate and baseball enthusiast Charles Byrne who convinced his brother-in-law Joseph Doyle and casino operator Ferdinand Abell to start the team with him.  Byrne set up a grandstand on fifth avenue and named it Washington Park in honor of George Washington.  The team played in the minor Inter-State Association of Professional Baseball Clubs.

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.

1897 Brooklyn Bridegrooms season: The 1897 Brooklyn Bridegrooms finished the season in seventh place under new manager Billy Barnie.  Also the team's ownership underwent a change as Charles Byrne and Ferdinand Abell buy the shares previously owned by George Chauncey and Charles Ebbets becomes a part owner of the team.

Patricia O'Brien Cotter: Patricia O'Brien Cotter is a Montana Supreme Court Associate Justice first elected on November 7, 2000, filling the seat of the retired Justice William E. Hunt.  Originally from South Bend, Indiana, she graduated with honors in 1972 from Western Michigan University with a B.S. in Political Science and History.  Justice Cotter's law degree is from the Notre Dame Law School in 1977.

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.

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.

1888 Brooklyn Bridegrooms season: With the 1888 season, the Brooklyn Grays underwent a name change to the Brooklyn Bridegrooms, a nickname that resulted from several team members getting married around the same time.  Also, owner Charles Byrne decided to withdraw from managing the team's on field activities and turned the reins over to more experienced baseball manager Bill McGunnigle.  That, along with the Bridegrooms' purchase of several top players from the defunct New York Metropolitans, led to a dramatic on field improvement as the team finished in second place in the American Association.

Supporting paragraphs: Patrick Cotter O'Brien Charles Byrne (giant)
Answer: Irish Giant