Japan: 'Portrait of Aritomo Yamagata', Prime Minister of Japan from 1909 to 1922. Oil on canvas painting by Okada Saburosuke (1869-1939), early 20th century. Prince Yamagata Aritomo (14 June 1838 - 1 February 1922), also known as Yamagata Kyosuke, was a Japanese field marshal, twice-elected Prime Minister of Japan, and one of the leaders of the Meiji oligarchy. As the Imperial Japanese Armys inaugural Chief of Staff, he was the main architect of the military foundation of early modern Japan. Okada Saburosuke (12 January 1869 - 23 September, 1939) was a Japanese yoga (Western-style) painter. He was influenced by great yoga painters such as Kuroda Seiki and Kume Keiichiro, and became one of the founding members of Hakuba-kai (White Horse Society), an artists' association. He was awarded the Order of Culture in 1937, the highest honour in the Japanese cultural world.