Bruno Franz Kaulbach (1880–1963) was an Austrian lawyer and a member of the Kohn family from Bennisch whose descendants include the former U.S. Secretary of State John Kerry.

He cited the hardship and suffering inflicted on the people of Tirol by the Nazi Gauleiter, Franz Hofer, and suggested that American complicity was to blame for Hofer's escape from internment camp[4] Bruno Kaulbach died in 1963 at Hall in Tirol.

When John Forbes Kerry ran for the United States Presidency in 2004, little was known about his paternal ancestry.

Researchers, hired by the Boston Globe newspaper, discovered that Kerry's great grandfather was a Jewish brewer named Benedikt Kohn (1824-1876) from the Austrian town of Bennisch (now Horni Benesov, Czech Republic).

The trajectory of the Kaulbach strand of the family, previously unknown because of the name change, was revealed by the Boston Globe newspaper in the fall of 2013[5]