Born in Hungary, Lily Ebert was 14 when she was deported to Auschwitz-Birkenau in 1944. Upon arrival, her mother and youngest siblings were sent to the gas chambers.
Ms Ebert and her two sisters were later forced to work in a munitions factory near Leipzig until their liberation in 1945.
The sisters moved to Switzerland after the war and Ms Ebert came to the UK in 1967.
A Holocaust Memorial Day Trust patron since 2015, Prince Charles stressed the importance of Shoah remembrance in a video message during this year’s commemorations.
“As I speak, the last generation of living witnesses is tragically passing from this world so the task of bearing witness falls to us,” he said.
The Prince visited Yad Vashem last year to mark the 75th anniversary of the liberation of Auschwitz.
He spoke of his family's "immense pride" over the actions of his late grandmother, Princess Alice, who took in a Jewish family in Nazi-occupied Athens in 1943. She was later recognised as a Righteous among the Nations and was laid to rest on the Mount of Olives.
