 1412–1433) was a Chinese eunuch sent on overseas diplomatic missions during the reigns of the Yongle Emperor and Xuande Emperor in the Ming dynasty.He is best known as the commander of one of the detached squadrons of Zheng He's fleet during the Seventh Voyage of this fleet to the Indian Ocean (1431–1433).According to the "History of Ming", in 1412 (i.e., some time between the third and fourth voyages of Zheng He's fleet), Hong Bao was sent by the Yongle Emperor as the envoy to Thailand.