How do family firms succeed from generation to generation? While this is likely the most important question for the members of a family business, little is known about the central success factors in creating value across the generations. For this reason, our study aims to explore the secrets of family firms with a long, successful track record and to expand the current state of knowledge. In so doing, we want to look not only at «the family firm» but also broaden our scope to the entire entrepreneurial family behind the company. This is our contribution to a greater understanding of transgenerational value creation in entrepreneurial families, which we hope will in turn benefit a range of stakeholders.