Question: When did Alicia Pietri's husband die?
Sentence (from "Rafael Caldera"): Widely acknowledged as one of the founders of Venezuela’s democratic system, the main architect of the 1961 Constitution, and a pioneer of the Christian Democratic movement in Latin America, Caldera helped forge an unprecedented period of civilian democratic rule in a country beleaguered by a history of political violence and military caudillos.
Relevant evidence: No