<P> Towards India he turned his reins quickly and went in all glory, </P> <P> Driving like the blowing wind, dapple - grey steed swift as lightning . With bounty and liberality, he returned to the capital; Round his stirrups were the heavens and angels round his reins . A thousand thanks! The beauty of the world has revived With the early glory of the throne of multi-coloured gems . </P> <P> After Shah Jahan's death, his son Aurangzeb, who had the regnal name of Alamgir, ascended the Peacock Throne . Aurangzeb was the last of the strong Mughal emperors . After his death, in 1707, his son Bahadur Shah I reigned from 1707--1712 . Bahadur Shah I was able to keep the empire stable, by maintaining a relaxed religious policy; however, after his death the empire was in inexorable decline . A period of political instability, military defeats, and court intrigues led to a succession of weak emperors: Jahandar Shah ruled for one year from 1712--1713, Farrukhsiyar from 1713--1719, Rafi ud - Darajat and Shah Jahan II only for a couple of months in 1719 . By the time Muhammad Shah came to power, Mughal power was in serious decline and the empire was vulnerable . Nevertheless, under the generous patronage of Muhammad Shah, the court at Delhi became again a beacon of the arts and culture . Administrative reforms could not however stop the later Mughal - Maratha Wars, which greatly sapped the imperial forces . It was only a question of time until forces from neighbouring Persia saw their chance to invade . </P> <P> Nadir Shah's invasion of India culminated in the Battle of Karnal, on 13 February 1739, and the defeat of Muhammad Shah . Nadir Shah entered Delhi and sacked the city, in the course of which tens of thousands of inhabitants were massacred . Persian troops left Delhi at the beginning of May 1739, taking with them the throne as a war trophy, their haul of treasure amounting to a large reduction in Mughal wealth and an irreplaceable loss of cultural artefacts . Among the known precious stones that Nadir Shah looted were the Akbar Shah, Great Mughal, Great Table, Koh - i - Noor, and Shah diamonds, as well as the Samarian spinel and the Timur ruby . These stones were either part of the Peacock Throne or were in possession of the Mughal emperors . The Akbar Shah Diamond was said to form one of the eyes of a peacock, as did the Koh - i - Noor . The Shah diamond was described by Jean - Baptiste Tavernier as being on the side of the throne . Many of these stones ended up becoming part of the Persian crown jewels or were taken later by the British colonialists . </P>

Who was the last mughal emperor to sit on the peacock throne