Saionji Kinmochi
Prince Saionji Kinmochi (西園寺 公望, December 7, 1849 – November 24, 1940) was a Japanese politician, statesman and twice Prime Minister of Japan. His title does not signify the son of an emperor, but the highest rank of Japanese hereditary nobility; he was elevated from marquis to prince in 1920. As the last surviving genrō, he was Japan's most honored statesman of the 1920s and 1930s.
Early life
Kinmochi was born in Kyoto as the son of Udaijin Tokudaiji Kin'ito (1821–1883), head of a kuge family of court nobility. He was adopted by another kuge family, the Saionji, in 1851. However, he grew up near his biological parents, since both the Tokudaiji and Saionji lived very near the Kyoto Imperial Palace. The young Saionji Kinmochi was frequently ordered to visit the palace as a playmate of the young prince who later became Emperor Meiji. Over time they became close friends. Kinmochi's biological brother Tokudaiji Sanetsune later became the Grand Chamberlain of Japan. Another younger brother was adopted into the very wealthy Sumitomo family and as Sumitomo Kichizaemon became the head of the Sumitomo zaibatsu. Sumitomo money largely financed Saionji's political career. His close relationship to the Imperial Court opened all doors to him. In his later political life, he was an influence on both the Taishō and Shōwa emperors.