Cuyen

Cuyen was a Manchu prince and eldest son of the Later Jin ruler Nurhaci, the early patriarch of the Qing dynasty. An accomplished warrior, Cuyen was instrumental in the consolidation of Nurhaci's authority among rival Jurchen clans. He also served as the primary civil administrator for intermittent periods in the regime founded by Nurhaci. However, he eventually lost favour with his father because he tried to cast sorcery spells against other princes. He was placed in solitary confinement and died in captivity a few years later.