Stonewood Fortress was the second largest city of Bardi Empire's Eternal Hope Province. As the final defensive barrier for the entire province, losing it would be the equivalent of losing the entire Eternal Hope Province.
And not long ago in the "Holy War," the Bardi Empire just happened to lose this important defensive barrier.
Once this flourishing, well-known province was lost, approximately two million citizens landed in the enemy's hands, along with an equivalent amount of resources and land.
Bardi's eastern front against the Holy Church lost their battle too quickly. It was so quick that the citizens behind them didn't even have the time to retreat. Even the duke of the Eternal Hope Province became the Holy Church's hostage. Meanwhile, the Holy Church also obtained its greatest glory and biggest victory in recent times.