Background
Horn was born in Trieste to immigrants, an Austrian father and a Greek mother.
Horn was born in Trieste to immigrants, an Austrian father and a Greek mother.
He produced works in the naturalist style. Horn also served as an officer in the Hellenic Navy, graduating in 1899 from the Hellenic Naval Academy. As a commander, he was one of the first Navy officers to be transferred to the newly constituted Hellenic Coast Guard, where he remained for the rest of his career, retiring on 28 October 1926 with the rank of Rear Admiral.