From the wiki: “Prince Fushimi Sadanaru (1858–1923) was the 22nd head of the Fushimi-no-miya shinnōke (branch of the Imperial Family), and was a field marshal in the Imperial Japanese Army.
“A career army officer, Prince Sadanaru entered the military academy in 1873 and fought as a lieutenant in the Satsuma Rebellion. Promoted to captain in 1878, he studied military tactics at the École Spéciale Militaire de Saint-Cyr in France and, later, in Germany in the 1870s. Upon his return to Japan, he was promoted to major in 1881 and advocated the establishment of a Japanese version of an army General Staff based on the Prussian model. He was promoted to lieutenant colonel in 1884, colonel in 1887 and to major general in 1889. He was awarded the Grand Cordon of the Order of the Chrysanthemum in 1886.
“Major General Prince Fushimi Sadanaru served as a field commander in the First Sino-Japanese War (1894–1895), commanding the IJA 4th Division, and landing with his forces in the Liaodong Peninsula, China in 1894. He subsequently participated in the 1895 Japanese invasion of Taiwan.
“In 1904, with the start of the Russo-Japanese War he again landed with his forces in the Liaodong Peninsula. In June, he was promoted to full general, and recalled to Japan to serve on the Supreme War Council, before being sent by Emperor Meiji on a diplomatic mission to the United States. After the conclusion of the Treaty of Portsmouth, he was sent to England again on a mission of thanks from the Japanese government for British advice and assistance during the war. During this mission, he also stopped in Honolulu for a visit with the Japanese community there. In 1909, he was again sent on a diplomatic mission, this time to China. Prince Fushimi also represented Japan at the state funeral of Great Britain’s King Edward VII May 20, 1910. He met with the new King George V at Buckingham Palace.
“Prince Fushimi was a close advisor to then-Crown Prince Yoshihito (later Emperor Taishō). After the death of Emperor Meiji in 1911, he served as Lord Keeper of the Privy Seal of Japan from 1912 to 1915, thus becoming the only imperial prince to have served in that office.”