"as I watch from my deck the autumn moon, vainly remembering old General Xie." It's General Xie Shang.
Xie Shang, whose name is Renzu. Chen Jun was born in Yangxia (now Taikang County, Henan Province). Celebrities and generals in the Eastern Jin Dynasty, son of Xie Kun, satrap of Yu Zhang, and brother of Xie An, a teacher. When Xie Shang was young, he was brilliant, proficient in temperament, good at dancing, skilled in calligraphy and good at talking.
Extended information
thoughts of old time from a night-mooring under mount niu-zhu
Author Li Bai? Dynasty Tang
this night to the west of the river-brim, there is not one cloud in the whole blue sky. As I watch from my deck the autumn moon, vainly remembering old General Xie.
I have poems; I can read, he heard others, but not mine. Tomorrow I shall hoist my sail, with fallen maple-leaves behind me.
Translation
In the autumn night, the boat was moored at Niuzhu Mountain in Xijiang River, and there was not a cloud in the blue sky. I boarded the boat and looked up at the bright autumn moon, thinking of General Xie Shang in the Eastern Jin Dynasty in vain.
I can also recite Yuan Hong's poems about history, but it's a pity that I don't have the wise general to listen. Tomorrow morning I will hang my sail and leave Niuzhu, where only maple leaves are falling all over the sky.
Baidu encyclopedia-Xie Shang