Rosbach (Seven Years' War).
Fought November 5, 1757, between 80,000 French and Austrians, under Marshal Soubise, and 30,000 Prussians, under Frederick the Great. Frederick, who occupied the heights of Rosbach, was attacked by the allies. The Prussian cavalry, however, under Seidlitz, charged down upon the Austrians, and threw them into disorder, and the infantry falling upon the broken columns utterly routed them, with a loss of 4,000 killed and wounded, 7,000 prisoners, including 11 generals and 63 guns. The Prussians lost 3,000 only.
Rosbecque.
Fought 1382 between 50,000 Flemings, under Philip van Arteveldt, and the French, under Charles VI. The Flemings at first drove back the French, but were overwhelmed by the charges of the French cavalry on their flanks, and were in the end utterly routed. Thousands fell in the action and subsequent pursuit, amongst them van Arteveldt.
Rostock (Dano-Swedish Wars).
Fought June, 1677, between the Danish fleet, under Admiral Juel, and the Swedes, under Admiral Horn. The Swedes were completely defeated.
Rotto Freddo (War of the Austrian Succession).
Fought July, 1746, when the rearguard of the retreating French army, under Marshal Maillebois, was attacked by the Austrians, under Prince Lichtenstein, and after a gallant resistance defeated with heavy loss. In consequence of this defeat the French garrison of Placentia, 4,000 strong, surrendered to the Imperialists.
Rouen (Hundred Years' War).
This city was besieged 1418, by the English, under Henry V. After a gallant defence the garrison surrendered January 15, 1419, the city paying a ransom of 300,000 crowns.