Gvero, who was convicted of committing war crimes in Srebrenica and suffered a stroke two years ago, died in Serbia on Sunday, his lawyer said.
“He died at the military hospital in Belgrade,” Gvero’s lawyer Dragan Krgovic told BIRN on Monday.
Gvero, the Bosnian Serb army’s wartime assistant commander for ‘moral, legal and religious issues’ at its main headquarters, was 75.
He was sentenced to five years’ imprisonment in 2010 for his involvement in the expulsion of the non-Serb population from Srebrenica in July 1995.
The court ruled that he had participated in a joint criminal enterprise which resulted in the murder of over 7,000 Bosniak men and boys.
Gvero was released after the verdict because of his poor health.
The prosecution appealed that the five-year sentence was too short but proceedings were suspended when the ex-commander suffered his stroke two years ago.
His defence asked for the proceedings to be terminated altogether, but the Tribunal ruled a month ago that he was healthy enough for the case to continue.
The Tribunal said on Monday that it could not confirm Gvero’s death because it had not yet been informed officially.
Also on Monday, the Tribunal approved the early release of former Bosnian Croat commander Mladen Naletilic, who was convicted of war crimes against Bosniaks in Mostar in 2006, and had served two-thirds of his sentence. He was being held in a prison in Italy.