The Chairman of the Supreme Soviet was the de jure head of state of the Byelorussian SSR.
With the disbandment of the Presidium of the Supreme Soviet of the Byelorussian SSR in May of 1990, the powers of the Chairman of the Presidium of the Supreme Soviet were transferred to the Chairman of the Supreme Soviet.
This changed the role and powers of the Chairman of the Supreme Soviet from 1990 and onwards.
The Chairman of the Supreme Soviet was the de jure head of state of the Byelorussian SSR. With the disbandment of the Presidium of the Supreme Soviet of the Byelorussian SSR in May of 1990, the powers of the Chairman of the Presidium of the Supreme Soviet were transferred to the Chairman of the Supreme Soviet. This changed the role and powers of the Chairman of the Supreme Soviet from 1990 and onwards.
Supreme Soviet of the Byelorussian Soviet Socialist Republic