Painting Depicting the Signing of the Treaty of Lahore after First Anglo-Sikh War, India, 1846

The First Anglo-Sikh War, fought between the Sikh kingdom of the Punjab and the British East India Company between 1845 and 1846, resulted in partial subjugation of the Sikh kingdom. In the Treaty of Lahore, in 1846, the Sikhs were made to give up Kashmir and had to accept a British resident in Lahore. This effectively gave the East India Company control of the region's government. The Treaty also gave the Koh-i-Noor diamond to Queen Victoria.