This episode of "The Rest Is History" podcast interviews Dominic Sandbrook and Tom about the Normans, focusing on their expansion into Southern Italy and the tumultuous early years of William the Conqueror's reign. The discussion begins with an 11th-century monk's account of the Normans, then explores their military prowess and expansionist ambitions, highlighting the construction of castles as a key factor in their dominance. The podcast details the chaotic succession in Normandy after Robert the Magnificent's death, emphasizing the ensuing anarchy and the challenges faced by the young William. Finally, the episode touches upon the complex political landscape of 11th-century England, including the reigns of Harold Harefoot and Harthacnut, leading up to the accession of Edward the Confessor. The episode ends with a cliffhanger, setting the stage for the next episode about Harold Godwinson.