On 19 August 1980, Otto Frank died in Basel at the age of 91. The news of his death was noted around the world. Fritzi Frank-Markowitz, his widow, received hundreds of letters of condolence. Dutch rabbi Avraham Soetendorp conducted the funeral service.
Anne's diaries and other writings were transferred to the Dutch state and are now managed by the Netherlands Institute for War Documentation (NIOD). The copyright on Anne Frank's writings is now held by the Anne Frank Fonds in Basel, Switzerland.