Analysis of information sources in references of the Wikipedia article "Sultan Saïd Khan" in French language version.
« Some 400 years earlier, in ad 1527, a Yarkandi invader, Sultan Saiad Khan Ghazi (also known as Daulat Beg) of Yarkand, briefly conquered Kashmir after fighting a battle along this pass. He died in 1531 at Daulat Beg Oldi (meaning, where Daulat Beg died) at the foot of the Karakoram pass, after he was returning from an unsuccessful attempt to invade Tibet. »
.« According to H.W. Bellew, he was no ordinary traveller but a great warrior, a partisan of Babur, the conqueror of Ferghana and the king of Yarkand and Kashgar »