Carl Einar Thure af Wirsén ( 20 April 1875 – 5 January 1946 ) was a Swedish Army officer , diplomat and writer . Originally an officer , he was sent into the diplomatic service after World War I and served as a military attaché in Constantinople and Sofia where he witnessed the Armenian Genocide . From the Ottoman Empire and the Balkans , af Wirsén came to Poland and witnessed the country 's resurrection . After serving in London , Reval and Riga , he was sent as envoy to Bucharest , Athens and Belgrade in 1921 . After working in the Mosul Commission , af Wirsén was sent to Berlin , where he would stay for the next 12 years as envoy . Finally he was envoy in Rome for three years before retiring in 1940
Armenian Genocide
Armenian Genocide
Einar af Wirsén