This study outlines the challenges faced by authors who might undertake in the future the task of writing a full scholarly biography of Cardinal Stefan Wyszyński. The author of this paper analyzes the state of research to date and evaluates the existing literature on the subject. The following two sections deal with challenges regarding source material and interpretive challenges in describing diverse areas of the life and scope of the Primate of the Millennium’s activities. The paper focuses on the period of Wyszyński’s service as a primate, as it seems that in-depth research on the earlier stages of Stefan Wyszyński’s life could be an arduous task to conduct.