Murong Jun, Xianbei name Helaiba (賀賴跋), courtesy name Xuanying (宣英), also known by his posthumous name as the Emperor Jingzhao of Former Yan (前燕景昭帝), was the second and penultimate ruler of the Former Yan dynasty of China. He initially held the Eastern Jin-created title of Prince of Yan, but later claimed the title of emperor in 353. During his reign, the state expanded from possessing merely modern-day Liaoning and parts of Hebei to nearly all of the territory north of the Yellow River and some substantial holdings south of the Yellow River. The Book of Jin described Murong Jun as being approximately 2 metres (6.6 ft) tall and having an imposing look.