Yes, he served with the German Army in WW1.
He was a Lieutenant
During World War 1
Otto Frank served the German Imperial Army during the first world war. He was the father of Ann Frank and the sole survivor of his family.
Like the other members of the Frank family, Otto was sent to Auschwitz. He remained there and was one of the prisoners liberated by the Soviet Army on 27 January 1945.
Otto Frank's birth name is Otto Heinrich Frank.
1942, but Margot lied to Anne at first and said that it was Otto Frank who was drafted.
The name of Anne Frank's father is Otto Frank.
Anne Frank's father is Otto, he was forced to leave the armt because he was a Jew.
Otto Frank was Anne's father
Miep was Otto Frank's secretary.
Otto Frank went by Pim.
Otto Frank was the only survivor from that group.