According to the Related Link, it is of German and Ashkenazic Jewish nationality. See the Related Link below for more information.
Asked how to say his name, Knopf told the Literary Digest: "Sound the k: k'nupf."Source: Wikipedia.
Sascha Hehn's birth name is Alexander Josef Albert Hehn.
Al-fred A Knopf.
Sascha Knopf is 5' 7".
Blanche Knopf was born in 1894.
Blanche Knopf died in 1966.
Heinrich Knopf was born in 1839.
Heinrich Knopf died in 1875.
Alfred A. Knopf was created in 1915.
Christopher Knopf goes by Chris.
Margaret Knopf goes by Marylynn.
Alfred A. Knopf was born on September 12, 1892.