Question: Who is Marquis Ai Of Cai's father?
Sentence (from "Marquis Yi of Cai"): Marquis Yi of Cai( 蔡夷侯)( died 809 BC), born as Ji?( 姬?; his name is lost to history), was the seventh ruler of the State of Cai from 837 BC to 809 BC.
Relevant evidence: No