Alejandro Rafael Barrett Lopez, father of Soledad Barrett Viedma, was born in Areguá, Paraguay, on February 24, 1907 and graduated as a Navy Officer at the Argentine Naval School. Veteran of the “Guerra del Chaco” was honored with the “Defender's Cross” medal.

He married Eulogia Deolinda Viedma, with whom he had 10 children. Deolinda remained by his side for life, facing terrible situations passing away two years after her husband death.

Dom Alex, as he was called, fought in the 1947 war against Moríngio's dictatorship which led him, after his arrest, to seek exile for himself and his family in Argentina. There, as a foreigner, he suffers other arrests for political reasons and for the injustice of a boss who accused him of being a thief.

Later, due to an amnesty granted in 1949, he returned to Paraguay with his family. After a few years, the mathematics teacher's tranquility ends. Persecuted by the police of the Stoessner dictatorship (1954), he is forced to abandon his family, flee and hide. So it remains for six years of instability and insecurity, distant from his wife and children. In 1960, Alejandro is imprisoned and tortured brutally for two weeks, then taken to a forced labor prison.

In August 1961 he was released after official negotiations between governments, Uruguay being the country that will receive him as a political exile. In a short time and at great cost, the family also moves there. During all these years, since the dictatorship established in Paraguay, Alejandro has received news of the various arrests and repressions suffered by his older sons, active supporters of student movements and unions that acted against the repression.

When the coup d'état took place in Uruguay in 1973, Alejandro is quickly remembered, due to his known political history. It starts to be sought and threatened. He loses his job as a teacher due to these pressures, which makes it difficult for him to provide for his family. In 1975, he was expelled from Uruguay, without documents, only with an exit passport for a direct trip to Venezuela.

He died in exile, in Caracas, in 1980, at the age of 73, as a result of the physical consequences left by torture and subhuman conditions, when he was arrested in Paraguay.