Roderick James "Jess" McMahon Sr. (May 26, 1882 – November 22, 1954) was an American professional wrestling and professional boxing promoter, and the patriarch of the McMahon family.
 He founded the Capitol Wrestling Corporation with Toots Mondt in 1952.
 McMahon's son, Vince Sr., later took over and founded the World Wide Wrestling Federation (WWWF) (today known as WWE).
The McMahon killings or the McMahon murders occurred on 24 March 1922 in Belfast, Northern Ireland, when six Catholic civilians were shot dead, of whom five were McMahon family members, a father and four of his sons.
 Two others were wounded and a female family member was assaulted.
 The dead were aged between 15 and 50, and all but one were members of the McMahon family.
 The gunmen broke into their house at night and shot all eight males inside.
 It is believed to have been a reprisal for the Irish Republican Army's (IRA) murder of two policemen the previous day.
The WCCW Parade of Champions was a series of professional wrestling supercards promoted by Fritz Von Erich's World Class Championship Wrestling first in 1961, in 1972 and then annually from 1984 through 1988.
 Von Erich used the "Parade of Champions" name in 1984 as a way to honor his recently deceased son, David and the subsequent Parade of Champions were all "Von Erich Memorial" Parades of Champions.
 At the inaugural Von Erich Memorial event, in front of the largest crowd ever to watch a pro wrestling event in the United States up to that point, Kerry Von Erich defeated Ric Flair for the NWA World Heavyweight Championship, only to lose it back to Flair 18 days later in Yokohama, Japan.
 Over the next few years, Von Erich altered the names as tragedy repeatedly struck his family.
 The Parade of Champions was the most recognized event that World Class Championship Wrestling, later known as World Class Wrestling Association, promoted.
 There was a Parade of Champions super card held by Southern Sports (precursor to WCCW) in 1961 and another held by Big Time Wrestling (the previous name of WCCW) in 1972.
 All Parade of Champions supercards were held at Texas Stadium in Irving, Texas.
 A wrestling organization out of Texas called NWA Southwest ran an event in late August, 2010, called Parade of Champions, which it claimed was the "Longest Running Wrestling Event In Texas History Dating Back To 1972," but there was no actual connection between the WCCW show event other than the name.
Maximum Pro Wrestling (MaxPro) is a Canadian independent professional wrestling organization, founded in 2010 with the merger of Scott D'Amore's Border City Wrestling out of Windsor, Ontario and BSE Pro Wrestling out of Toronto, Ontario.
James Dudley (May 12, 1910 – June 1, 2004) was an American baseball player, professional wrestling manager, and professional wrestling executive.
 He played Negro league baseball for nine years but is best known for his time with the World Wide Wrestling Federation.
 Dudley was the first African-American to run a major United States arena (Turner's Arena in Washington, D.C.).
 He worked with four generations of wrestling's McMahon family and was particularly close with Vincent J. McMahon.
 At age 74, he was put back on the company's payroll to show appreciation for his work for the McMahons.
 He also managed several wrestlers in the WWWF and was inducted into the WWF Hall of Fame in 1994.
The McMahon family is a professional wrestling family.
 They are best known as the founders, owners, and promoters of the world's most prominent professional wrestling company, WWE, formerly known as the World Wrestling Federation (WWF), the World Wide Wrestling Federation (WWWF), and the Capitol Wrestling Corporation (CWC).
 The company's primary business is professional wrestling, but it has expanded into a subscription based network, home video production, movie production company, and an E-commerce company.
Capitol Wrestling Corporation Ltd. was an American professional wrestling promotion and the sanctioning body for the World Wide Wrestling Federation (WWWF) and later World Wrestling Federation (WWF).
 Founded by Jess McMahon and Toots Mondt in 1953, Capitol Wrestling Corporation is the precursor to today's WWE, run by Jess' grandson, Vincent Kennedy McMahon.
BSE Pro (Formerly Blood Sweat and Ears) (or BSE Wrestling) was a Canadian independent professional wrestling organization, founded in 2005.
 It held 10-12 events a year in the Greater Toronto Area, as well as quarterly tours to Northern Ontario cities such as Timmins, Sudbury, Iroquois Falls, Kirkland Lake and North Bay.
 It evolved into Maximum Pro Wrestling after it merged with fellow Canadian promotion Border City Wrestling in 2010.
Break The Barrier was a professional wrestling supercard held at Viking Hall, better known as the ECW Arena, in Philadelphia, Pennsylvania on May 15, 1999.
 The event was organized by the founders of Scoopswrestling.com, Al Isaacs, Remy Arteaga and Barbi Bistrowitz, and brought together some of the top independent wrestlers from around the country.
 It was one of the biggest interpromotional events in the United States and represented by 12 independent promotions including Allied Powers Wrestling Federation, Combat Zone Wrestling, Extreme Championship Wrestling, Independent Pro Wrestling, Independent Professional Wrestling Alliance, Maryland Championship Wrestling, Music City Wrestling, NWA New Jersey, New Dimension Wrestling, South's Greatest Wrestling Fans, Steel City Wrestling, World Legion Wrestling and World Wrestling Organization.
 Pro Wrestling Illustrated has called it "one of the greatest Supercards of all time".
The Catch Wrestling Association (CWA) was a professional wrestling organization based in Austria and Germany that was founded in 1973.
 It was run by Otto Wanz.
 The CWA featured a traditional brand of mat wrestling mixed with various “Strong Man” competitions.
 The company was engaged in talent-share agreements with other wrestling promotions, including New Japan Pro Wrestling and the American Wrestling Association.
 These agreements expanded the opportunities given to many European wrestlers.
 CWA's biggest card was the Euro Catch Festival, which was held twice a year (it was held in Graz, Austria in the summer, while in the winter, it was held in Bremen, Germany).

Question: The patriarch of the McMahon family founded the precursor to what current Wrestling organization?
Answer: WWE