| frederick | (n) a town in northern Maryland to the west of Baltimore |
| frederick i | (n) son of Frederick William who in 1701 became the first king of Prussia (1657-1713) |
| frederick i | (n) Holy Roman Emperor from 1152 to 1190; conceded supremacy to the pope; drowned leading the Third Crusade (1123-1190), Syn. Frederick Barbarossa, Barbarossa |
| frederick ii | (n) king of Prussia from 1740 to 1786; brought Prussia military prestige by winning the War of the Austrian Succession and the Seven Years' War (1712-1786), Syn. Frederick the Great |
| frederick ii | (n) the Holy Roman Emperor who led the Sixth Crusade and crowned himself king of Jerusalem (1194-1250), Syn. Holy Roman Emperor Frederick II |
| fredericksburg | (n) a town in northeastern Virginia on the Rappahannock River |
| fredericksburg | (n) an important battle in the American Civil War (1862); the Union Army under A. E. Burnside was defeated by the Confederate Army under Robert E. Lee, Syn. Battle of Fredericksburg |
| frederick william | (n) the Elector of Brandenburg who rebuilt his domain after its destruction during the Thirty Years' War (1620-1688), Syn. Great Elector |
| frederick william i | (n) son of Frederick I who became king of Prussia in 1713; reformed and strengthened the Prussian army (1688-1740) |
| frederick william ii | (n) king of Prussia who became involved in a costly war with France (1744-1797) |
