 Muslim and Mongol eunuchs were present in the Ming court, such as the ones captured from Mongol-controlled Yunnan in 1381, and among them was the great Ming maritime explorer Zheng He, who served Yongle.Muslim eunuchs were sent as ambassadors to the Timurids.Vietnamese eunuchs like Ruan Lang, Ruan An, Fan Hong, Chen Wu, and Wang Jin were sent by Zhang Fu to the Ming.