Mate Boban (12 February 1940 ? 7 July 1997) was a Herzegovinian Croat politician and the only president of the short-lived and self-proclaimed Croatian Republic of Herzeg-Bosnia that existed from 1991 to 1994 during the Bosnian War.In May 2013, the ICTY, in a first-instance verdict against Jadranko Prli?, found that Boban took part in the joint criminal enterprise against the non-Croat population of Bosnia and Herzegovina.