As a result of a multi-volume research project, funded by the Thyssen Foundations (Stiftung zur Industriegeschichte Thyssen and Fritz Thyssen Stiftung), ten books were published that served to greatly advance the available knowledge on the Thyssen family and their companies. The results of this project are summarized in this volume which provides both an explanation of how the project was conceptualized and executed and a detailed case study of a family and their business during the late-nineteenth and twentieth centuries. It explains the development of both whilst addressing issues such as patriarchal succession; gender roles in the family; wealthy lifestyles in international communities of aristocrats and diplomats; operating across national legislation, institutions, and policies; and discussions of labor and capital. In doing so it connects corporate and family history to provide an all-inclusive view of the development of a business.