Iichirō Hatoyama (鳩山 威一郎, Hatoyama Iichirō; November 11, 1918 – December 19, 1993) was a Japanese politician and diplomat. Between 1976 and 1977, he served as Foreign Minister under Prime Minister Takeo Fukuda. He was the son and father of two former Prime Ministers, Ichirō and Yukio respectively.
Source: “Iichirō Hatoyama”, English Wikipedia (CC BY-SA 4.0), excerpt