Question: When did Inge Feltrinelli's husband die?
Sentence (from "Inge Feltrinelli"): Inge Feltrinelli (née Schönthal; 24 November 1930 – 20 September 2018) was a German-born Italian photographer and director, who with her son Carlo ran the Italian publishing house Giangiacomo Feltrinelli Editore.
Relevant evidence: Yes