Anne Frank 1944, she kept a diary she had received as a birthday present, and wrote in it regularly. Following their arrest, the Franks were transported to concentration camps. In October or November 1944, Anne and her sister, Margot, were transferred from Auschwitz to Bergen-Belsen concentration camp, where they died (probably of typhus) a few months later. They were originally estimated by the Red Cross to have died in March, with Dutch authorities setting 31 March as their official date of death, but research by the Anne Frank House in 2015 suggests they more likely died in February. Otto, the only survivor
Anne Frank Another suspect is stockroom manager Willem van Maaren. The Annex occupants did not trust him, as he seemed inquisitive regarding people entering the stockroom after hours. He once unexpectedly asked the employees whether there had previously been a Mr. Frank at the office. Lena Hartog was suspected of being the informant by Anne Frank's biographer Melissa Müller. Several of these suspects knew one another and might have worked in collaboration. While virtually everyone connected with the betrayal was interrogated after the war, no one was definitively identified as being the informant. In 2015, Flemish journalist Jeroen de Bruyn and Joop