Herz-Schnoekel is the daughter of Max and Ingeburg Herz. Her Father co-founded Tchibo in 1949 with Carl Tchilinghiryan.
In 2003, these three family members bought out Herz-Schnoekel and her brother, Günter Herz's 40% stake. Tchibo is 100% owned by three members of the Herz family, Herz-Schnoekel's mother and two of her brothers, Michael and Wolfgang Herz.
Herz-Schnoekel is married, and lives in Hamburg. In 2008, her brother Joachim died in a motorboat accident.
According to Forbes, Herz-Schnoekel has a net worth of $2.8 billion, as of May 2015.