Margaret of Berg-Windeck

Margaret of Berg-Windeck (c. 1285–1340) was the daughter of Henry of Berg, lord of Windeck, and Agnes of the Mark. In 1313 she married Count Otto IV of Ravensberg. Their daughters were Hedwig, wife of Duke William of Brunswick-Lüneburg, and Margaret, who in 1338 married Gerhard of Jülich.

When Otto died in 1328 Ravensberg passed to his brother Bernard, and the countess last appears in charters in 1339. Her daughter Margaret inherited Ravensberg in 1346 and the County of Berg in 1348.