The Kissingers trace their lineage back to Meyer Löb, a Jewish educator who lived from 1767 to 1838. Originating from Kleineibstadt, he adopted the surname Kissinger after relocating to Bad Kissingen. This change was in accordance with a Bavarian law from 1813 that mandated Jews to adopt surnames. Löb's life exemplifies the integration and adaptation of Jewish families within German society during that time.

Meyer Löb had two children with his first wife, contributing to a family legacy that would later include notable figures such as Henry Kissinger. This context, explored in Niall Ferguson's book "Kissinger: 1923-1968: The Idealist," highlights the early influences and circumstances that shaped the future diplomat's life and career.