About Masayoshi Ōhira
Masayoshi Ōhira (大平 正芳, Ōhira Masayoshi; 12 March 1910 – 12 June 1980) was a Japanese politician who served as prime minister of Japan from 1978 until his death in 1980. Born in Kagawa Prefecture, Ōhira worked in the Ministry of Finance from 1936, and served as the private secretary to Hayato Ikeda, finance minister from 1949 to 1952. Ōhira was first elected to the Diet in 1952, and served as foreign minister in Ikeda's cabinet from 1962 to 1964 and as international trade and industry minister from 1968 to 1970 under Eisaku Satō. He took over Ikeda's faction of the Liberal Democratic Party and later served as foreign minister from 1972 to 1974 under Kakuei Tanaka and as finance minister from 1974 to 1976 under Takeo Miki. He succeeded Takeo Fukuda as LDP president and prime minister in 1978. After his government was defeated in a no-confidence vote, Ōhira decided to call the 1980 election rather than resign, but died suddenly of a heart attack. He is the most recent Japanese premier to die in office. In 1936, he entered the Ministry of Finance, where he became a protégé of Hayato Ikeda. Ōhira worked in the Ministry of Finance throughout World War II. In the postwar period, when Ikeda became Minister of Finance from 1949 to 1952, Ōhira served as his private secretary. In 1952, at Ikeda's urging, Ōhira ran for and won the first of 10 terms in the House of Representatives of the Japanese National Diet, first representing the Liberal Party, and later its successor party the Liberal Democratic Party (LDP). In 1957, as Ikeda prepared a push to try to become prime minister, Ōhira became a founding member of Ikeda's "Kōchikai" think tank, and was widely viewed as Ikeda's "right-hand man".
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.