Prince of Chu
In fall 907, Lei Yangong, with aid from Ma Yin the Prince of Chu (even though that Ma was formally a Later Liang vassal), attacked Jiangling. Gao stationed troops at Gong'an (公安, in modern Jingzhou) to cut off Lei's food supply route, and then defeated him. He withdrew, as did Chu troops. Later, Lei attacked Cenyang (涔陽, also in modern Jingzhou) and Gong'an, but could not capture them.