Shortly after taking power, this ruler asked a scholar to draftft a coronation decree which compared him to the Duke of Zhouwho assisted King Cheng in ancient times; when that scholar refused, this man ordered that ten degrees of his kinsmen beexecuted, one more than the usual nine. After that incident, this ruler allegedly built a giant bell in his capital to atone for theblack karma he created, according to the later poet Shen Deqian. This ruler was known as the Prince of Yan before he came topower during a civil war called the Jingnan Rebellion. He commissioned his secretary Xie Jin to create a massive encyclopediawhich bears his name. He also built the Porcelain Tower of Nanjing, and began construction of the Forbidden City after movinghis capital to Beijing. For 10 points, name this third emperor of the Ming 
Shortly after taking power, this ruler asked a scholar to draftft a coronation decree which compared him to the Duke of Zhouwho assisted King Cheng in ancient times; when that scholar refused, this man ordered that ten degrees of his kinsmen beexecuted, one more than the usual nine. After that incident, this ruler allegedly built a giant bell in his capital to atone for theblack karma he created, according to the later poet Shen Deqian. This ruler was known as the Prince of Yan before he came topower during a civil war called the Jingnan Rebellion. He commissioned his secretary Xie Jin to create a massive encyclopediawhich bears his name. He also built the Porcelain Tower of Nanjing, and began construction of the Forbidden City after movinghis capital to Beijing. For 10 points, name this third emperor of the Ming Dynasty, who promoted the voyages of ZhengHe.
Shortly after taking power, this ruler asked a scholar to draftft a coronation decree which compared him to the Duke of Zhouwho assisted King Cheng in ancient times; when that scholar refused, this man ordered that ten degrees of his kinsmen beexecuted, one more than the usual nine.
Yongle Emperor [or Yung-lo; or the Yunglo Emperor; or Zhu Di; or Chengzu; prompt on the "Prince of Yan" before mention]