三国干渉
Arturo Paul Nicholas Cassini, Marquis de Capuzzuchi de Bologna, Count de Cassini (1836–1919), was a Russian aristocrat and lifelong diplomat who served in the Diplomatic Service of the Imperial Russian Government for 55 years during the 19th and early 20th centuries. During his tenure, he served most prominently as Ambassador to China during the Triple Intervention and negotiation for the lease of Port Arthur; as Ambassador to the United States for seven tumultuous years which saw the Spanish–American and Russo-Japanese wars; and as Ambassador to Spain during the Algeciras Conference.