This thesis explores uncharted territory by researching the relationship between leadership behaviours in family businesses and the preservation of socioemotional wealth (SEW). SEW, which encompasses the non-financial aspects that satisfy the emotional needs of family members, is crucial for the longevity and success of family businesses. The study addresses a significant gap in the literature by examining how leadership behaviours shape SEW preservation actions. Using a qualitative multiple-case study approach, the research investigates two cases to understand the antecedents, mechanisms, and outcomes of SEW preservation actions. The findings of this research are significant as they reveal that the perception of past SEW has a profound impact on current leadership behaviours and SEW preservation actions. The study offers valuable theoretical insights into the dynamics of SEW preservation in family businesses. It also provides practical strategies for family business leaders, emphasising the importance of assessing one's past and aligning leadership behaviours with SEW preservation actions. By doing so, leaders can enhance organisational performance and preserve SEW more effectively. These insights not only deepen our understanding of the complex interplay between leadership and SEW preservation in family businesses but also offer strategic guidance for practitioners and family business owners, potentially transforming the way they approach leadership in their businesses.