The Great Seal of Norman kings depicted the monarch in two essential but distinct poses: as a lawgiver on a throne and as a warrior on horseback. This duality presented a fundamental cultural and practical barrier for female rulers, who were excluded from the warrior role, undermining their claim to full authority.

The Taira clan's decision to flee Kyoto with the child emperor and the imperial regalia was a strategic necessity. Without the symbolic power of the emperor, their rivals could claim to be defenders of the throne, instantly transforming the Taira from legitimate rulers into outlaws. Legitimacy was a tangible weapon of war.

The trial's primary goal was not justice but to delegitimize Charles VII. By convicting Joan as a witch, the English hoped to prove that Charles's coronation was a "satanic fraud," thereby restoring the legitimacy of their own claimant to the French throne.

While Matilda had the sworn oaths of the nobility, Stephen followed his uncle Henry I's playbook: ignore procedure, rush to the treasury at Winchester, and secure a swift coronation. This proves that in a power vacuum, decisive action and control of resources can defeat abstract legitimacy.

The English believed their string of improbable victories against a larger, richer France proved God's favor. They viewed their claim to the French throne not as aggression but as a divinely sanctioned right, using battlefield success as theological proof that their cause was just.

Upstart Italian rulers, lacking noble lineage, adopted Roman art, architecture, and scholarship as propaganda. This created an aura of classical greatness and stability, making them seem like legitimate successors to the Caesars rather than mere tyrants who had seized power through a coup.

Even with overwhelming military force, the samurai leader Yoritomo sought the cloistered emperor's endorsement. This provided a "constitutional" veil, making his seizure of power more palatable to the court and public, demonstrating that symbolic legitimacy is vital even in a military-first state.

The court ritual where Joan "identified" the Dauphin she had already met was a deliberate piece of political theatre. This staged "pantomime" was not a genuine test but a public relations exercise designed to cement the narrative of her divine gifts and the Dauphin's legitimacy in the minds of the entire court.

When Matilda was on the verge of being crowned, her decisive and authoritative behavior—expected of a male king—was perceived as "arrogance" unbefitting her gender. This clash between the expected role of a monarch and the expected behavior of a woman led her allies to abandon her at a pivotal moment.