The Spanish Netherlands (Spanish: Países Bajos Españoles; Dutch: Spaanse Nederlanden; French: Pays-Bas espagnols; German: Spanische Niederlande; historically in Spanish: Flandes, the name "Flanders" was used as a pars pro toto) were a collection of States of the Holy Roman Empire in the Low Countries, held in personal union by the Spanish Habsburgs, but not annexed to the Spanish Crown, thus encompassing the second period in history of the Habsburg Netherlands, that lasted from 1556 to 1714. This region comprised most of the modern states of Belgium and Luxembourg, as well as parts of northern France, the southern Netherlands, and western Germany, with the capital being Brussels. The Army of Flanders was given the task of defending the territory.
The Imperial fiefs in the former Burgundian Netherlands had been inherited by the House of Habsburg from the extinct House of Valois-Burgundy upon the death of Mary of Burgundy in 1482. The Seventeen Provinces formed the core of the Habsburg Netherlands, which passed to the Spanish Habsburgs upon the abdication of Emperor Charles V in 1556. Spanish hegemony in Netherlands was solidified following their victory in the Fall of Antwerp during the Eighty Years' War. When part of the Netherlands separated to form the autonomous Dutch Republic in 1581, the remainder of the area stayed under Spanish rule until the War of the Spanish Succession.