The book investigates specific case studies, such as Charles I of England and Louis XVI of France, alongside lesser-known examples from both European and Asian history. It analyzes the political climate, legal proceedings, and immediate aftermath of each execution. By drawing from primary sources like trial transcripts and contemporary accounts, Royal Executions presents a fresh perspective, viewing royal executions as integral components of broader political and social transformations, examining the long-term implications and influence on political thought and social structures.