Question:  Fabrizio Ciano was the son of a foreign minister who left behind a diary that was used in an HBO documentry-drama entitled what?
Sentence (from "Galeazzo Ciano"): Gian Galeazzo Ciano, 2nd Count of Cortellazzo and Buccari (] ; 18 March 1903 – 11 January 1944) was Foreign Minister of Fascist Italy from 1936 until 1943 and Benito Mussolini's son-in-law.
Relevant evidence: Yes