The first West Tibetan dynasty of Maryul founded by Palgyigon lasted five centuries, being weakened towards its end by the conquests of the Mongol/Mughal noble Mirza Haidar Dughlat. Throughout this period the region was called "Maryul", possibly from the original proper name "*Mrasa" (Xuangzhang's, "Mo-lo-so"), but in the Tibetan language it was interpreted to mean "lowland" (the lowland of Ngari). Maryul remained staunchly Buddhist during this period, having participated in the second diffusion of Buddhism from India to Tibet via Kashmir and Zanskar.