Friedrich "Fritz" Pfeffer was a German dentist and Jewish refugee who hid with Anne Frank and her family and the Van Pels family during the Nazi occupation of the Netherlands. He perished in the Neuengamme concentration camp in Northern Germany. Pfeffer was given the pseudonym Albert Dussel in Frank's diary, and remains known as such in many editions and adaptations of the publication.

Annelies Marie Frank was a German-born Jewish girl who kept a diary in which she documented life in hiding under Nazi persecution during the German occupation of the Netherlands. She is a celebrated diarist who described everyday life from her family hiding place in an Amsterdam attic. One of the most-discussed Jewish victims of the Holocaust, she gained fame posthumously with the 1947 publication of The Diary of a Young Girl, in which she documents her life in hiding from 1942 to 1944 — it is one of the world's best-known books and has been the basis for several plays and films.