The fourth ruler of the Zhalu myriarchy in Tsang. One of the titles he bore was sku zhang (literally “maternal uncle”), which was given to the nobles of Zhalu to indicate that they gave their daughters in marriage to important Sakya hierarchs. Together with his son, Kunga Döndrup (kun dga’ don grub), Drakpa Gyaltsen was an important patron of Butön Rinchen Drup (bu ston rin chen grub, 1290–1364) during the latter’s abbacy of Zhalu monastery. The exact dates for Drakpa Gyaltsen are unknown, but he must have lived during the thirteenth–fourteenth centuries ᴄᴇ. See Skilling 1993, pp. 84–86.