Alice Herz-Sommer, the oldest known living survivor of the Holocaust, died Sunday. She was 110 years old. She and her five year old son were imprisoned at the Theresienstadt concentration camp, while her mother and husband were sent to Auschwitz and were later gassed. Herz-Sommer and her son returned to Prague after the camp was liberated by the Soviet Union in May of 1945.

A music teacher and accomplished pianist, Herz-Sommer was known for her strict routines, eating only chicken or fish for 30 years, swimming daily, and refraining from alcohol. She lived in London until her death. Her life story is documented in the short documentary, The Lady in Number 6: Music Saved My Life.