Then Cuban President Fidel Castro, second from left, is shown with his brother Ramon, left, and sisters Angelina and Agustina Castro, right, in the yard of what used to be their parents’ home in Biran, east of Havana, in 2003. (AIN via/Reuters)

Agustina del Carmen Castro Ruz, the youngest sibling of Cuban leaders Fidel and Raúl Castro, died March 26 at a hospital in Havana. She was 78.

The cause was complications from a recent surgery following a fractured hip, her sister Juanita Castro said.

Agustina Castro was the youngest of seven siblings. She never served in the Cuban government and kept a low profile, unlike her brothers, who collectively have run the country for nearly 60 years, and Juanita, who is a prominent member of the Cuban American activist community in South Florida.

Fidel Castro died in November at 90, a little over a decade after severe illness forced him from power. Raúl, who succeeded his brother as Cuban president, turns 86 in June.