'Jiajing' is the reign-era name (
年号), not a personal name — his given name was Zhu Houcong (
朱厚熜). Obsessed with Daoist immortality elixirs; a group of palace maids nearly assassinated him in 1542 (the
壬寅宫变). Central figure in the acclaimed TV drama《
大明王朝1566》.