About Mario Indelli
Lived 1886 – 1956 (aged 70). Mario Indelli was an Italian diplomat and ambassador.
Mario Indelli (1 April 1886 – 19 December 1956) was an Italian diplomat and ambassador who served the Kingdom of Italy and the Republic of Italy.
Biography Indelli was born in Florence on 1 April 1886. He was the son of Luigi Indelli (1828–1903), a lawyer with multiple mandates within the House of Deputies of the Kingdom of Italy, and brother of another diplomat, Paolo Francesco Indelli, who held the position of general consul and consul from 1910 to 1920. Indelli studied jurisprudence at the University of Bologna, where he graduated on 26 April 1910.
Indelli died in Rome on 19 December 1956.
Diplomatic career Upon being appointed as a consular officer, having passed the competitive examination for entry into the diplomatic service, he was assigned to Alexandria, Egypt, by order of 27 March 1911. Starting from May 1911, he operated under the services of the Italian Ministry of Foreign Affairs. On 26 May 1912, he was promoted to second-class consul and, in July 1912, he held the position of secretary to the Italian delegate at the Italian-Argentine health conference. On 16 February 1913, he was assigned to Smyrna (now İzmir), under the Ottoman Empire, with consular duties and, in December of the same year, to Aydın. Then, in 1914, he returned to Smyrna. In July 1914, he was promoted to first-class consul and, from 1 October 1915, he was assigned to Nice, France.
Vice-Consul in Smyrna in 1918–1919, he was then secretary of the Italian delegation to the Lausanne Conference (in 1922–1923) and, promoted to secretary of legation, and later assigned to the Directorate General of Political Affairs of the Ministry of Foreign Affairs, where he worked until he was assigned to missions abroad once again. Starting from 28 September 1934, having been promoted to the title of extraordinary envoy and minister plenipotentiary he was assigned to represent the Kingdom of Italy within the Kingdom of Albania, and later on, starting from 7 August 1936, he was assigned the same role of representation within the Kingdom of Yugoslavia. His last assigned diplomatic role lasted from 1940 to 1946, in which he was the ambassador of Italy in the Japanese Empire. He was interned by the Japanese following 8 September 1943, right before the Japanese-Italian War.
After the war Indelli returned to Italy, where he retired on 1 June 1947 after 36 years of diplomatic service.
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Important facts
Contemporaries
People whose lives overlapped Mario Indelli's
Frequently asked questions
Who was Mario Indelli?
Italian diplomat and ambassador (1886–1956)
When was Mario Indelli born?
Mario Indelli was born on 1 April 1886 in Florence.
When did Mario Indelli die?
Mario Indelli died on 19 December 1956 in Florence.
What was Mario Indelli's occupation?
Mario Indelli was a diplomat and ambassador.
What nationality was Mario Indelli?
Mario Indelli was Italian.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Mario Indelli. https://biography.guide/mario-indelli/
MLA: "Mario Indelli." Biography.guide, https://biography.guide/mario-indelli/.
Chicago: "Mario Indelli." Biography.guide. https://biography.guide/mario-indelli/.
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