Kuniyoshi, Prince Kuni (久邇宮邦彦王, Kuni-no-miya Kuniyoshi ō; 23 July 1873 – 27 January 1929) was a member of the Japanese imperial family and a field marshal in the Imperial Japanese Army during the Meiji and Taishō periods. He was the father of Empress Kōjun (who in turn was the consort of the Emperor Shōwa), and therefore, the maternal grandfather of Emperor Emeritus Akihito and great-grandfather of Emperor Naruhito.
Source: “Prince Kuni Kuniyoshi”, English Wikipedia (CC BY-SA 4.0), excerpt
