The most popular girls for the napoleonic soldiers were the Prussian girls. According to Jean-Claude Quennevat the Prussian girls "were generally hyper-sentimental romantics, inclined to accord a holy gloss to the sexual act, even outside marriage, and were therefore ready to sacrifice anything for their lovers."
Quite many French soldiers dueled for the Prussian girls. The cavalrymen used sabers, the infantry used bayonets or the short infantry swords. (Duelling was forbidden by the Emperor so it usually took place at night by torch light.)