United Nations of Ju Jitsu (UNJJ) - Members - Jean de Greef

United Nations of Ju Jitsu






Country of Residence


Position within the UNJJ

Founder Member


7th Dan

Jean de Greef

Jean de Greef started his martial arts training with judo in 1958 and graduated 1dan in 1964. His training with ju-jitsu began in 1980 at gino lo gioco's club in brussels and in addition spent 2 years training with the special police ju jitsu section in brussels.
Jean de greef is a founder member of the belgian fbrjj/bojjf federation with Gino Lo Gioco he has filed many functions under the auspices of the fbrjj/bojjf namely secretary general, vice-president and foreign affairs officer as a founder member of the international adssociation unjj in september 191 in chiny, belgiumm, jean has been president till 1999, then again from 2000 till 2004. Jean acquired his 1st dan ju jitsu in liverpool in 1985.