Friedrich von Hessen-Darmstadt (September 18, 1677, Darmstadt – October 18 1708, Chavusy) was a prince of Hesse-Darmstadt and Russian General. Frederick was the youngest son of Landgrave Louis VI. of Hesse-Darmstadt (1630-1678) and Elisabeth Dorothea of Saxe-Gotha-Altenburg (1640-1709). Frederick entered service in Rome 1697, like his three older brothers George, Philip and Henry, in protest of his mother, a zealous Protestant. Later he entered the Russian service under Peter the Great and was appointed Lieutenant-General of the cavalry. He participated, along with Peter, in the battle of Lesnaya against the Swedes, where he was mortally wounded during a musket exchange. Friedrich was brought to Chavusy in order to recover but died there on October 18, 1708, four days after Lesnaya. Freder