Daatje Frank (1936 – 1943) Daatje Frank was born on March 23, 1936 in Echteld, Gelderland , Netherlands. She had sibling Betty. She died on June 11, 1943 in Sobibór, Lublin Voivodeship , Poland at 7 years of age. Her cause of death is listed as: asphyxiated in gas chamber .