The Kew Letters relinquished all Dutch colonies to the British, to prevent them from being overrun by the French. In the famous Battle of Colachel (1741), Travancore king Marthanda Varma's army defeated the Dutch East India Company, resulting in the complete eclipse of Dutch power in Malabar. Although Dutch Coromandel and Dutch Bengal were restored to Dutch rule by virtue of the Anglo-Dutch Treaty of 1814, they returned to British rule owing to the provisions of the Anglo-Dutch Treaty of 1824.