Question: When did Corina Del Parral's husband die?
Sentence (from "José María Velasco Ibarra"): He became president of Ecuador five times, in 1934–1935, 1944–1947, 1952–1956, 1960–1961, and 1968–1972, and only in 1952–1956 did he complete a full term.
Relevant evidence: No