The
Hongwu Emperor of China heard of his accession in 1388 and conferred the title Guanding Guoshi upon him. Later, in 1406, the Ming Emperor sent a jade seal with a dragon-headed button to Drakpa Gyaltsen, together with 500 ounces of silver, three dresses of silk, flowered stuffs, fifty bolts of silk, and 200 pounds of
Bashan tea. Envoys continued to be dispatched back and forth during Drakpa Gyaltsen's long reign. The king received the title
wang (prince) from the Mings, as did the religious lords of
Drigung, Tsedong and Ling. They were known as "the four
wang of Tibet". The honorary title Chanhuawang (Prince who Expounds Buddhism) was borne by Drakpa Gyaltsen and his successors on the throne until the 17th century. Nevertheless, the
Yongle Emperor tried to obtain real ruling power over Tibet by using the Fifth
Karmapa,
Dezhin Shegpa (1384–1415) as a tool. The Karmapa was invited to the imperial court in 1406. He received three petitions from Drakpa Gyaltsen with a lament that "without an overlord there would be no protection [and] through which he offered head and body [to the emperor]". The Karmapa accordingly arrived to
Nanjing in 1407, was received with great pomp, and accepted to be the spiritual head of Dokham (East Tibet), Central Tibet, and Rapgang. As a Tibetan pro-Karmapa report had it: "In brief, his kindness of having protected Tibet from the terror of Chinese warfare cannot be measured. Nevertheless, there seemed to be no one in Tibet who understood this as kindness". The attempt to install the Karmapa as the emperor's vassal thus failed, and the Ming emperors were henceforth content with cultivating peaceful relations with various formally dependent Tibetan hierarchs. ==Religious patronage==