Grandmother of Plaza de Mayo Rosa Báez de Duarte has passed away at 94, the human rights organization reported on Monday.

Báez passed away without ever finding her missing grandchild, who was born while her pregnant daughter was kidnapped by the military dictatorship in 1977.

“With profound grief, we say goodbye to Rosa Báez de Duarte, yet another Grandmother  who leaves without ever hugging her grandchild,” said Grandmothers in a press release. “Her family and Abuelas continue her search today.”

Rosa’s eldest daughter María Eva (“Mary”) was kidnapped along with her husband Samuel Alberto Aranda on September 9, 1977. Mary, who was two months pregnant at the time, was abducted by military officers at her home in Los Polvorines, in the north-western suburbs of Buenos Aires. Alberto was taken as he got off the bus, on his way home from the factory in Munro where he worked. The couple, active militants in the Montoneros armed resistance, already had two children, Lorena and Alejandro. They were raised by Alberto’s parents after their parents’ disappearance.

According to the organization, Maria Eva’s baby may have been born in April or May of 1978 at the clandestine detention center in Campo de Mayo, a Buenos Aires province army stronghold where she was held. 

The Grandmothers of Plaza de Mayo have found 133 of the approximately 500 children who were abducted at birth by the military during the dictatorship. Their efforts have been hindered recently by a government decision to dissolve archives teams that work on dictatorship-era crimes, and helped solve emblematic cases of child appropriation.

The human rights organization launched a donation campaign to support the search for the several hundred children they have yet to find. Today, they would be in their late forties. “The context is more and more adverse with the advance of denialism and government policies that obstruct this urgent search,” they wrote.

Rosa’s search will be continued by her granddaughter Lorena, who will continue looking for her sibling, the Grandmothers said, “one of the nearly 300 ‘living desaparecidos’ who still have their identities forged by State terrorism”.