extensive library. From that point, Zhu Quan assisted his brother in his uprising, with the History of Ming recording that the Prince of Yan offered to split the entire empire between them. After his elevation as the Yongle Emperor in 1402, however, he swiftly reneged and refused to appoint his brother to lordship over Suzhou or Qiantang, instead giving him a choice only of backwater appointments. He settled upon Nanchang, the capital of Jiangxi. After a scare where he was accused of practicing wugu sorcery, Zhu Quan essentially retired from any interference with the realm, devoting his time instead to cultural pursuits. Meeting daily with local or visiting scholars, he pursued immortality. He treasured and revised his Secret Book of Origins (, Yuánshǐ Mìshū), a text which survived the fire of Daning and sharply attacked Buddhism as a foreign "mourning cult" at odds with Chinese culture and proper governance. His encyclopedia of Taoism, the Most Pure and Precious Books on the Way of August Heaven (, Tiānhuáng Zhìdào Tàiqīngyù Cè), was so esteemed it joined the Taoist canon. His brother ordered him to complete the Comprehensive Mirror of Extensive Essays (Tongjian Bolun) and was also credited with writing Family Advice (Jia Xun), Ceremonial Customs of the Country of Ning (Ningguo Yifan), The Secret History of the Han and Tang (, Hàn-Táng Mìshǐ), History Breaks Off (Shi Duan), a Book of Essays (, Wén Pǔ), a Book of Poetry (, Shī Pǔ), and several other annotated anthologies. His most successful was his Tea Manual (, Chá Pǔ). In addition, he personally funded the publication of many rare books and composed several operas. Zhu Quan is an important figure in the history of the Chinese zither, or guqin, for his compilation of the important Manual of the Mysterious and Marvellous (, Shénqí Mì Pǔ) in 1425. This is the earliest known large scale collection of qin scores to have survived to the present day. Family Consort: Lady Zhang (), Commander of the Wardens Zhang Tai's () daughter, died before his own death. Sons: 1st son: Zhu Panshi (; 16 October 1395 – 23 February 1437), Hereditary Prince of Ning () (created May 1404), posthumously initially honored Hereditary Prince Zhuanghui () (honored 1437), later honored Prince Hui of Ning () (honored 1449). Married Commander of the East City Wardens Yu Sheng's () daughter as Hereditary Princess of Ning () in March 1417 2nd