Michael Bullen came from a horse family, and a Bullen child competed in an equestrian event at almost every Olympic Games from 1960 to 1988. Michael Bullen competed in eventing at the 1960 and 1964 Olympic Games. His sister Jane was a gold medalist in eventing at the 1968 Olympic Games, and his sister Jenny (as Loriston-Clarke) competed in dressage at four Olympic Games (1972, 1976, 1984, 1988). One of his daughters, Lucinda Bullen married a nephew of Tommaso Lequio di Assaba who won a gold medal for Italy in show jumping at the 1920 Olympics, and a silver medal in show jumping and a team bronze in eventing at the 1924 Olympics. Lucinda’s godfather was none other than three-time Olympic gold medalist Richard Meade – who won gold in eventing at 1972 Olympics, and was member of the Great Britain team that won team eventing gold at the 1968 and 1972 Olympics.