Responses

Arlendo's father is the current emperor's (Pistole) father whom Medea (Dowager) married. In short, Dowager Medea is Emperor Pistole's Step-Mom and Arlendo is actually Pistole's Step-Brother and not his son, They were probably switched with the real heir which we dont know if alive (Probably not)
(I dont know why they believe Arlendo is Pistole's son but this is as far as I understood. Correct me if I'm wrong. :))
can somebody explain the thing with the dowager empress and the royal family blood line pleasseee