Between the 13th and 14th centuries, Europe experienced significant social and cultural changes. The decline of the Empire and Papacy led to the rise of new national entities, particularly the Kingdom of France. Events like the Avignon Captivity (1309) and the Slap of Anagni (1303) illustrated shifting power dynamics. The crisis of medieval universalism gave way to new forms of particularism in law and institutions. Aegidius Romanus, a key figure in these changes, wrote influential works that reexamined law and sovereignty, emphasizing the prince's role. His ideas, alongside those of other thinkers like Dante and Bartolo, reveal the complexities of late medieval thought and hint at emerging modernity.