What nationality is the person responsible for the ‘Bosman Ruling’ affecting football transfers?

Jean-Marc Bosman (born 30 October 1964) is a Belgian former professional footballer, whose judicial challenge of the football transfer rules led to the Bosman ruling in 1995. This landmark judgement completely changed the way footballers are employed, allowing professional players in the European Union (except for Malta where the illegal parameter system at the end of contract is still legal) to move freely to another club at the end of their contract with their present team.

Prior to the landmark trial, Bosman played for Belgian first division club Standard de Liège and RFC Liège and won 20 caps for Belgium at youth level. While the trial was ongoing Bosman played briefly in the French lower leagues, and on the Indian Ocean island of Réunion.