The family that owns Krispy Kreme, Panera Bread, Peet’s Coffee, Stumptown, Dr. Pepper, and many other companies is in the midst of a public reckoning with its past.

The Reimann family, who owns JAB Holding Company, which owns a vast array of popular coffee and food related companies, learned that their German ancestors not only supported Adolf Hitler during his rule of Germany, but used Russian civilians and French prisoners of war as forced labor in their family factory, NBC News reports.

The family has been aware of their relatives close ties and support of the Nazi regime since discovering documents belonging to a now-deceased family member, Albert Reimann Sr. He and his son, Albert Reimann Jr., used forced laborers under the Nazis during World War II and made the work in the industrial chemicals company that helped start the family’s fortune. In 2014, the Reimanns hired a history professor at the University of Munich to find answers about their family’s Nazi ties, but did not make the Nazi ties known until they were unveiled in a story in the German newspaper, Bild. They were then confirmed by family spokesman, Peter Harf. “We were ashamed,” Harf told the outlet in an interview, per NBC News. “These crimes are disgusting.”