Question: What is the date of death of Antonina Pirozhkova's husband?
Sentence (from "Antonina Pirozhkova"): Antonina Pirozhkova (1 July 1909 – 12 September 2010) was a Russian civil engineer and writer, best known for her contributions to the construction of the Moscow Metro and the preservation of the literary legacy of her husband Isaac Babel.
Relevant evidence: Yes