Jona von Ustinov  Jona, Baron von Ustinov (; 2 December 18921 December 1962), also known as Klop Ustinov (), was a German journalist and diplomat who worked for MI5 during the time of the Nazi regime. His father was the Russian-born emigre Baron Plato von Ustinov (1840–1918). His son was the actor Sir Peter Ustinov. Ustinov was born Jonah Freiherr von Ustinow in Jaffa, Palestine, then part of the Ottoman Empire, the son of Plato von Ustinov, a former Russian officer and naturalised citizen of the Kingdom of Württemberg, who had married Magdalena Hall, then living in Jaffa, the daughter of the Ethiopian court-lady Katharina Hall, also known as Welette-Iyesus and her husband Moritz Hall, a Jewish-born convert to Protestantism, cannon-caster of Tewodros II of Ethiopia and missionary of in Ethiopia, and later in Jaffa. Magdalena and Plato von Ustinov had five children, Jonah being the eldest. Jonah von Ustinov disliked his first name and chose the nickname "Klop" ("Bedbug" in Russian), by which he was known to his friends and relatives for the rest of his life. Ustinov went to school in Jaffa, where – until 1900 – his father hosted the school of the Protestant Immanuel congregation in his "Hôtel du Parc", later in Düsseldorf, and Yverdon. He studied at Grenoble University in France and worked at University of Berlin before moving to London. This peripatetic life engendered in Ustinov a cosmopolitan attitude that made him averse to any kind of nationalism. In World War I, Ustinov was conscripted into the German Army and served in the Army Air Service unit "Flieger-Abteilung (Artillerie) 250". He was awarded the Württembergian Military Merit Order for his services. His brother Peter von Ustinow joined the same unit and was killed in action on 13 July 1917. After the war Ustinov worked for Wolffs Telegraphisches Bureau, the first German news agency, in Amsterdam. On 17 July 1920 he married the painter Nadia Benois, daughter of Leon Benois.