Question: What nationality was Gary Hocking's MV Agusta teammate who won his first 500cc world championship after Hocking retired?

Context articles: Franco Bonera
Remo Venturi
Alberto Pagani
John Cooper (motorcyclist)
MV Agusta 500 Three
1962 Grand Prix motorcycle racing season
Hideo Kanaya
Mike Hailwood
MV Agusta
Gustav Havel

Gianfranco Bonera (born April 2, 1945, in Porpetto, Province of Udine) is an Italian former Grand Prix motorcycle road racer.
 His best year was in 1974 when he won the Nations Grand Prix and finished second to his MV Agusta teammate, Phil Read, in the 500cc world championship.
 He switched to the 250cc class in 1976, racing for the Harley-Davidson factory racing team on Aermacchi machines rebadged after being purchased by the American firm.
 He won the 250cc Spanish Grand Prix and finished the season in third place behind his Harley-Davidson teammate, Walter Villa and Yamaha's Takazumi Katayama.
Remo Venturi (born April 21, 1927 in Spoleto) is a former Italian Grand Prix motorcycle road racer.
 His best years were in 1959 and 1960 when he finished second in the 500cc world championship to his MV Agusta teammate, John Surtees.
Alberto Pagani (29 August 1938 – 11 September 2017) was an Italian professional Grand Prix motorcycle road racer.
 His best year was in 1972 when he finished second in the 500cc world championship, behind his MV Agusta teammate, Giacomo Agostini.
 He was the son of Nello Pagani, the 1949 125 cc World Champion.
John Cooper (born 1938 in Derby) is an English retired garage proprietor who was a prolific short-circuit motorcycle road racer during the 1960s and early 1970s.
 He also entered selected Grands Prix motorcycle road races.
 His best season was in 1967 when he finished the year in seventh place in the 500cc world championship.
 Cooper was a two-time winner of the North West 200 race held in Northern Ireland.
 He is remembered for his upset victory over the reigning 500cc world champion, Giacomo Agostini at the 1971 Race of the Year held at Mallory Park.
 Cooper rode a BSA Rocket 3 to finish three-fifths of a second ahead of Agostini's MV Agusta, achieving his fifth victory in the race since 1965.
 A section of the Mallory Park, Leicestershire circuit has been renamed from Lake Esses to the "John Cooper Esses" in his honor.
MV Agusta 500cc Three is a road racing motorcycle made by MV Agusta to compete in the 500 cc Grand Prix motorcycle racing World Championship.
 The motorcycle was introduced in 1966 to compete with the ever competitive Honda Racing.
 The bike was a bored out version of MV Agusta's highly successful 350 cc three cylinder.
 Its production lasted until 1974.
The 1962 Grand Prix motorcycle racing season was the 14th F.I.M. Road Racing World Championship Grand Prix season.
 The season consisted of eleven Grand Prix races in six classes: 500cc, 350cc, 250cc, 125cc, 50cc and Sidecars 500cc.
 It began on 6 May, with Spanish Grand Prix and ended with Argentine Grand Prix on 14 October.
 Defending 350cc and 500cc world champion Gary Hocking was deeply affected by the death of his friend, Tom Phillis at the 1962 Isle of Man TT and, announced his retirement from motorcycle racing after winning the 1962 Senior TT.
 Hocking's MV Agusta teammate, Mike Hailwood went on to win his first 500cc world championship.
Hideo Kanaya (Shinjitai: 金谷 秀夫 , Hideo Kanaya , February 3, 1945 – December 19, 2013) was a Grand Prix motorcycle road racer from Japan.
 Kanaya began his Grand Prix career in 1967 and won his first Grand Prix at the 1972 250cc German Grand Prix.
 In 1972, Kanaya and Jarno Saarinen raced the first four-cylinder, two-stroke Yamaha TZ 500 in the 500cc world championship.
 After Saarinen's death in the 250cc race at the Italian Grand Prix at Monza, the TZ 500 project was put aside and Kanaya raced only in the 250cc class.
 Kanaya's best season was in 1975, when he finished third in the 500cc world championship behind his Yamaha team-mate, Giacomo Agostini and MV Agusta's Phil Read.
 He also won the Macau Grand Prix in 1975.
Stanley Michael Bailey Hailwood, {'1': ", '2': ", '3': ", '4': "} , {'1': ", '2': ", '3': ", '4': "} (2 April 1940 – 23 March 1981) was a British Grand Prix motorcycle road racer.
 He is regarded by many as one of the greatest racers of all time.
MV Agusta, originally Meccanica Verghera Agusta, is a motorcycle manufacturer founded on 12 February 1945 near Milan in Cascina Costa, Italy.
 The company began as an offshoot of the Agusta aviation company formed by Count Giovanni Agusta in 1923.
 The Count died in 1927, leaving the company in the hands of his wife and sons, Domenico, Vincenzo, Mario and Corrado.
 Count Vincenzo Agusta together with his brother Domenico formed MV Agusta at the end of the Second World War as a means of saving the jobs of employees of the Agusta firm and also to fill the post-war need for cheap, efficient transportation.
 The acronym MV stands for "Meccanica" (mechanics) "Verghera", the hamlet where the first MVs were made.
 The company manufactured small-displacement, café racer-style motorcycles (mostly 125 to 150 cc) through the 1950s and 1960s.
 In the 1960s, small motorcycle sales declined, and MV started producing larger displacement cycles in more limited quantities.
 A 250 cc, and later a 350 cc twin were produced, and a 600 cc four-cylinder evolved into a 750 cc.
Gustav Havel (27 August 1930 - 30 December 1967) was a Grand Prix motorcycle road racer from the former Czechoslovakia.
 Havel began his Grand Prix career in 1961 with Jawa.
 He enjoyed his best season in 1961 when he finished the season in third place in the 350cc world championship behind Gary Hocking and his Jawa teammate, František Šťastný.