Gassiyev was born in Tskhinvali in 1925, but soon moved with his parents to Moscow. In 1935 the family went back to Tskhinvali, where Znaur Gassiyev finished secondary school in 1942. He enrolled in the Physics and Mathematics Faculty of the South Ossetian State Pedagogical Institute, but was drafted into the Soviet Army to fight in World War II during the period 1942 to 1944. Upon completion of his studies in 1947, he started working as a teacher, teaching mathematics and physics in various schools in Tskhinvali.
Early political career
In 1951, Gassiyev moved to Tbilisi, where he worked as a teacher for four years, and at the same time studied at the Mining Department of the Polytechnic Institute, where he graduated with honours in 1955. He then started working at the Mining Department of Kvaisa, where he held several ranks.
Political career
Gassiyev subsequently moved into politics, first working as the head of the industrial and transport committee of Dzau district. In the early 1960s, he was appointed the chairman of the Tskhinvali branch of the Georgian Communist Party, as well as the head of the administration of Tskhinvali city. In 1963, he went to the Higher Party School, from which he graduated with honours in 1965. Then, until 1972, he worked as deputy chairman of the South Ossetian executive committee. In 1991, when armed aggression was starting, he was elected first secretary of the South Ossetian Communist Party, and also headed the Supreme Council when South Ossetia declared its independence. As chairman of parliament, Gassiyev was Head of State of South Ossetia. In early 1992, Gassiyev handed over power to Torez Kulumbegov, a former chairman of the Supreme Council, who had been imprisoned in Tbilisi by Georgian police until then. Since 1992, Gassiyev remained active in politics, being re-elected as an MP in the 1994 election. Gassiyev was once again elected in the 2004 election, where he ran as a member of President Eduard Kokoity's Unity Party. Following the Unity Party's electoral victory, Gassiyev was once again elected chairman of Parliament.
Later career
After the 2008 South Ossetia war, Gassiyev was appointed head of the government's commission to deal with the resulting emergencies. Gassiyev, then 84 years old, did not run in the 2009 election, and was replaced as speaker by Stanislav Kochiev. On 27 October 2010, Gassiyev was appointed State Advisor to President Eduard Kokoity. His death was announced on 6 March 2016.
