An Ruzi (Chinese: 安孺子; pinyin: Ān Rúzǐ), also called Yan Ruzi (Chinese: 晏孺子; pinyin: Yàn Rúzǐ), personal name Lü Tu, was for 10 months in 489 BC the ruler of the Qi state.
[1][2] He was subsequently killed by Viscount Xi of Tian (田僖子), who then installed An Ruzi's older brother, Duke Dao, to the Qi throne.
Prince Tu was the youngest son of Duke Jing of Qi, and his mother was Duke Jing's favourite concubine Yu Si,[3] who was from the minor state of Chunyu.
[2] In the summer of 490 BC, the 58th year of Duke Jing's reign, the crown prince of Qi died.
Bao Mu was reluctant to depose Prince Tu but dared not oppose Tian.