Otto Frank remarried to Elfriede (Fritzi) Markovits in 1953 after the war.

the probability of Otto Frank and his second wife, Elfriede Geiringer-Markovits, having children would have been biologically impossible considering that by the time they were married Elfriede was forty-eight years old! However, Elfriede did have a son, who perished during the war, and a daughter, who survived.

Otto Frank married Edith Holländer in 1925 and they had two children together, Margot and Anne. Edith died from starvation in 1945. Otto Frank did remarry in 1953 to a woman named Elfriede Geiringer who he met at Auschwitz.

she was the mother of Eva, anne Frank's friend and old neighbor, she also went into hiding. After the war was over she found ott frank and they got married.

Karl Geiringer was born in 1899.