For 10 points, name this woman who, in 1974, succeeded her husband Juan as president of Argentina.
In 2007, this leader was arrested in Madrid for connection with the disappearance of Hector Gallego. Under this leader's presidency, currency was devaluated at 150% in the so-called "Rodrigazo" economic shock treatments. This leader was officially overthrown in a coup titled "the National Reorganization Process." While this leader was ill, Italo Luder issued the "annihilation decree" to kick off Operation Independence. This leader's Minister of Social Welfare and head of the Federal Police was noted occult buff and head of Triple A Jose Lopez Rega. This leader was succeeded as president by the head of the Armed Forces High Command, Jorge Videla. For 10 points, name this woman who, in 1974, succeeded her husband Juan as president of Argentina.
In 2007, this leader was arrested in Madrid for connection with the disappearance of Hector Gallego.
Isabel Martinez de Peron [accept Maria Estela Martinez Cartas de Peron]