The correct answer is: D: George III was known as the "king who lost America". George III (1738-1820) was King of Great Britain and Ireland from 1760 till his death. His life and reign were longer than any other British monarch before him, and it was marked by a series of military conflicts involving his kingdoms, much of the rest of Europe, and places farther afield in Africa, the Americas and Asia. During his reign Great Britain become a leading power in Europe and North America, but also lost its American colonies, as a result of the American Revolutionary War.