I want to know the answer to the following question:
When did the Ming first request Tsongkhapa to come to court?
All the background I'm provided with is that "This first request by the Ming was made in 1407, but the Ming court sent another embassy in 1413, this one led by the eunuch Hou Xian (候顯; fl. 1403–1427), which was again refused by Tsongkhapa.". Is that enough to answer the question?
Answer: yes