Lidia Gueiler Tejada (28 August 1921 – 9 May 2011) was a Bolivian politician who served as the 56th president of Bolivia on an interim basis from 1979 to 1980. She was Bolivia's first female Head of State, and the second female republican Head of State in the history of the Americas (the first was Isabel Perón in Argentina between 1974 and 1976). She was the cousin of American actress Raquel Welch. Background and earlier career Gueiler was born in Cochabamba, to Moisés Gueiler Grunewelt, an immigrant from Germany and a Bolivian mother, Raquel Tejada Albornoz. She received a BA degree from Instituto Americano in Cochabamba. In the 1940s, she joined the Movimiento Nacionalista Revolucionario (MNR). When that party came to power as a result of the 1952 National Revolution, Gueiler became a member of the Congress of Bolivia, serving in that capacity from 1956 until 1964. In 1964, she went into exile abroad after the MNR was toppled from power by generals Barrientos and Ovando. She spent the next fifteen years out of the country, and joined Juan Lechín's Revolutionary Party of the Nationalist Left (PRIN). She also became the vice-president of the Revolutionary Left Front. Upon returning to Bolivia in 1979, Gueiler again ran for Congress and was elected President of the Chamber of Deputies of Bolivia (the lower house of the Bolivian Congress) as part of the MNR alliance of former president Víctor Paz Estenssoro. As no presidential candidate in the 1979 elections had received the necessary 50% of the vote, it fell to Congress to decide who should be president. Surprisingly, no agreement could be reached, no matter how many votes were taken. An alternative was offered in the form of the President of the Senate of Bolivia, Dr. Wálter Guevara, who was named temporary Bolivian President in August 1979 pending the calling of new elections in 1980. Guevara was shortly afterwards overthrown in a military coup led by General Alberto Natusch. The population resisted, however, led by a nationwide labor strike called by the powerful Central Obrera Boliviana ("COB") of Juan Lechín. In the end, Natusch was able to occupy the Palacio Quemado for only sixteen days, after which he was forced to give up power. The only face-saving concession he extracted from Congress was the promise that Guevara not be allowed to resume his duties as president. Interim President of Bolivia The above condition