Otto Tief [SEP] date of death
Otto Tief
Otto Tief ( – 5 March 1976) was an Estonian politician, military commander (during the Estonian War of Independence), and a lawyer. 
He was the Acting Prime Minister of the last government of Estonia before the Soviet troops occupied Estonia in the Second World War in September 1944. Due to his commitment to his country, Otto Tief is regarded by many of his fellow countrymen as a symbol of national resistance. 
Education and career.
Tief studied law in St Petersburg between 1910 and 1916
as Acting President on 21 April. Uluots appointed Otto Tief as Prime Minister. Tief was subsequently arrested by the re-occupying Soviet forces in September.
In September 1944, Uluots and the surviving members of the Tief government escaped to Sweden. The day before Uluots died in January 1945, a successor, August Rei, was named to assume the position of acting President. Following Rei's death in 1963, the role passed to Aleksander Warma, then to Tõnis Kint in 1971, then to Heinrich Mark in 1990.