However, as he got older Liu Rengong grew into a more cruel, hedonistic and ineffective ruler and began spending more and more time with his concubines in his palace at Mount Da’an (in modern Beijing).
The catalyst for his overthrow was when he discovered that one of his sons, the successful general Liu Shouguang, was having an affair with his favourite concubine Lady Luo.
Then in 907 an army loyal to Zhu Quanzhong launched a surprise attack on Liu Rengong's capital You Prefecture.
However, in 909 Liu Shouwen agreed an alliance with the Khitans and some Tuyuhun tribes in exchange for money,[1] which bolstered his total forces to 40,000.
[2] With this army he engaged Liu Shouguang at Jisu (possibly the modern city of Tianjin or another town in the vicinity).