Danube once appears as the mother of Vrtra, "a dragon blocking the course of the rivers." The Finnish word for Danube is Tonava, which is most likely derived from the word for the river in Swedish and German, "Donau". Its Sámi name "Deatnu" means "Great River". It is possible that "dānu" in Scythian as in Avestan was a generic word for "river": "Dnieper" and "Dniestr", from "Danapris" and "Danastius", are presumed to continue Scythian "*dānu apara" "far river" and "*dānu nazdya-" "near river", respectively. The river was known to the ancient Greeks as the "Istros" (Ἴστρος) a borrowing from a Daco-Thracian
Army of the Danube March 1799, the Army of the Danube engaged in two major battles, both in the southwestern German theater. At the Battle of Ostrach, 20–22 March 1799, the first battle of the War of the Second Coalition, Austrian forces, under the command of Archduke Charles, defeated French forces. The French suffered significant losses and were forced to retreat from the region, taking up new positions at Messkirch (also spelled Mößkirch or Meßkirch), and then at Stockach and Engen. At the second battle, in Stockach, on 25 March 1799, the Austrian army achieved a decisive victory over the French forces, and again