To answer that question, we should consider not just the 1815 Treaty of Vienna, but also the 1648 Peace of Westphalia and the 1919 Treaty of Versailles, each of which in its own way brought to an end a bloody chapter in European history.
为了回答这个问题，我们不仅应该考虑1815年的《维也纳条约》（Treaty of Vienna），还应该考虑1648年的《威斯特伐利亚和约》（Peace of Westphalia）和1919年的《凡尔赛和约》（Treaty of Versailles）这三次和约以各自的方式结束了欧洲历史上的血腥篇章。