Question: Who was the incumbent president who was the wife of Néstor Kirchner?
Sentence (from "Death and state funeral of Néstor Kirchner"): Argentina’s former President and 1st Secretary General of the Union of South American Nations, Néstor Kirchner, died of heart failure on the morning of 27 October 2010 at the Jose Formenti hospital in El Calafate, Santa Cruz Province at the age of 60.
Relevant evidence: Yes