Please, post your favorite stories of compassion and chivalry towards enemies. I will start the ball rolling.
During the fighting at Waterloo, the Duke of Wellington noticed a surgeon working on the wounded while under fire. Upon asking who it was and learning that it was Larrey, he directed his men to not fire in Larrey's direction and took off his hat in a salute to Larrey. When asked who he was saluting, Wellington pointed at Larrey and explained, "I salute the courage and devotion of an age that is no longer ours."
Larrey was the Chief Surgeon of the Grande Armée and Imperial Guard.
Retreating from Waterloo, Larrey, his ambulances, and his escort charged through a Prussian unit blocking their path, but Larrey was hit, knocked unconscious, and left for dead. Upon waking, he set off on his own, only to have a Prussian cavalry squadron hunt him down. All alone, he surrendered, but was immediately manhandled and stripped of almost everything on him. They then took Larrey to a Prussian general, who ordered that he be shot. As a Prussian surgeon stepped forward to bandage his wound before his imminent execution, the surgeon recognized Larrey and convinced the general to not execute Larrey. Larrey was sent first to General Bülow, who improved his condition, giving him new clothes and untying his hands, and then sent him on to Blücher. Larrey had previously treated Blücher's son at Dresden, and Blücher treated him with respect and sent word to his wife that he was alive, as the French had thought Larrey was killed in the retreat from Waterloo.