Note 1 — Letter to Felipe II by Francisco de Sande
Reading edition
Referring to the Tartar chief Yenta, who harassed the Chinese empire from 1529 until 1570—raiding the frontiers, carrying away rich plunder and many captives (in one campaign, it is said, 200,000 persons), and even threatening Pekin itself. Finally (1570) peace was restored, Yenta acknowledging the sovereignty of the Chinese emperor, and receiving in return the title of prince of Chuny. Yenta died in 1583. See Boulger's Hist. China, ii, pp. 141–144, 150, 154.