Who was the last ruler of the Tang Dynasty?
Emperor Ai of Tang
Li Zuo was born in 892, at the main palace at the Tang imperial capital Chang'an.  His father Emperor Zhaozong was already emperor at that point, and he was Emperor Zhaozong's ninth son.[4]  His mother was Consort He, who had previously given birth to an older brother of his, Li Yu, Prince of De, who was Emperor Zhaozong's oldest son.