I see,But why make up a historically fake character(Most of the characters exist).Did the REAL daughters have any relationship with Guan Ping?
Also,I remember my parents talking about this once,But Apprently if your family name is "Liu,Guan,Zhang" You cannot marry any one with "Liu,Guan,Zhang." as they was meant to be brothers,So in the 3 kingdoms Era this rules may have existed, However,It may have been false,Along side the other false facts from the romance of the 3 kingdoms
Sig And Avy made by me...Raikiri :D