Havana (CNN) -- Angelita Castro, the older sister to Cuban presidents Fidel and Raul Castro, died in Havana on Tuesday, her sister Juanita Castro said. She was 88.
Juanita Castro told CNN her sister had suffered from Alzheimer's disease and died surrounded by her family.
"She was a dedicated and loving mother; her family took very good care of her after she became ill," she said.
Juanita Castro told CNN she had not seen her sister since leaving the island in 1964 and becoming a critic of the Cuban revolution.
Angelita's Castro's death was not reported on Cuba's state-run media.