Why was the battle of Hernani important for French Romanticism?

The 1830 premiere of Victor Hugo’s play Hernani is historically significant as a symbolic victory for Romanticism in the French theater.1

The "battle" of Hernani was important because it represented a direct challenge to the rigid formal rules of classical tragedy. By intentionally renouncing the traditional unities of time and place, Hugo implemented the theories he had previously outlined in the preface to his play Cromwell. In that work, he advocated for a new style of drama that could transcend classical categories by mixing the sublime and the grotesque, reflecting the contradictions of human existence.213

Hernani succeeded in this transition by utilizing popular melodrama, exotic historical settings, and a tragic hero who resonated deeply with young Romantics. By breaking away from classical constraints, the play helped establish a more naturalistic and expressive form of dramatic literature that prioritized emotion and individual freedom over traditional order and restraint.1245