佛祖歷代通載 15.43

15.43

（三十二　辛丑）　穆宗恒（憲宗第三子。登祚仁賢壽三十歲。葬于光陵在正位四年）改長慶。

(32, Xinchou) Muzong, [named] Heng (the third son of Xianzong, who ascended the throne as a benevolent and worthy ruler; lived to the age of thirty; was buried in Guangling; and was on the throne for four years), changed the reign title to Changqing.