Duleep Singh was the last ruler of the Sikh Empire, being dethroned by the East India Company after the Second Anglo-Sikh War. In 1863, Singh was being supervised in Britain where he was a friend of Queen Victoria and kept a large social circle. He was known as the "Black Prince of Perthshire" around his home in Scotland. Singh was given money by the East India Company administration on condition that he complied with the demands of the British government. Duleep had been taken to Britain when a child and raised as a Christian. This was after he had been persuaded to agree to the annexation of the Punjab by the East India Company. The treaty also included handing the Koh-i-Nor diamond as well, which became part of the Crown Jewels. Singh was separated from his mother, Maharani Jindan Kaur. His mother remained in India, although eventually she was allowed to rejoin her son in England. Duleep collected her after special permission was given. Duleep was allowed by the East India Company to visit India for the second time to bury his mother after she died in Britain, although the body remained at Kensal Green Cemetery for nearly a year whilst this was negotiated upon. His mother's ashes were not allowed to be buried in Lahore (the main city of the Punjab), but had to be placed in a memorial in Bombay instead.