Ralph Montagu was an English nobleman born in 1638, known for his role as a diplomat and politician during the 17th century. He served as the British ambassador to the French court and was involved in various political affairs of his time, particularly during the reign of King Charles II. Montagu was also a member of the House of Lords and held the title of the 2nd Duke of Manchester. His contributions to diplomacy and politics helped shape relations between England and other European nations during a period marked by significant change and conflict.