gemeente (municipality), southwestern Netherlands, at the confluence of the Mark (Merk) and Aa rivers. It was a direct fief of the duchy of Brabant; its earliest known lord was Godfrey I (1125–70), in whose family it continued until it was sold to Brabant in 1327. Chartered in 1252, it passed to the house of Nassau in 1404 and, ultimately, to William I of Orange (1533–84). Fortified (1531–36) by Count Henry III of Nassau, who restored the old castle built by John I of Polanen in 1350, it remained an important fortress on the Mark until the 19th century.

The Compromise of Breda (1566) was the first move against Spanish dominion, but Breda was captured by the Spanish in 1581. Retaken by Maurice of Nassau in 1590, it fell again to the Spanish in 1625 (the subject of a famous painting by Velázquez), was captured by Prince Frederick Henry of Orange in 1637, and was finally ceded to the Netherlands by the Peace of Westphalia (Westphalia, Peace of) (1648). The exiled Charles II of England resided in Breda, and his Declaration of Breda (1660) dictated the terms for his acceptance of the English throne. In 1667 the Treaty of Breda (Breda, Treaty of) ended the second naval war between the Netherlands and England and confirmed British possession of New York and New Jersey and Dutch control of the East Indies and Dutch Guiana. In 1696 William of Orange (William III), king of England, completed the castle (now the Royal Military Academy). During the French Revolution, the town was taken by the French, who occupied it until 1813.

Industrial activities include food processing and the manufacture of machinery, rayon, and matches. Architectural features include the Protestant Grote Kerk, a medieval Gothic church with a massive tower; the town hall (1766); Sint Barbaras church (1869), the seat of a Roman Catholic bishop; and several museums. Pop. (2007 est.) mun., 170,349; urban agglom., 311,659.