I have said this spoiler before HAHAHAHAHAHAHA. BUT IT IS TRUE, Navier was indeed INFERTILE at that time. The story that he was about to tell to the priest was TRUE. What everybody didn't know, and didn't realize is that Navier was healed after she finally went to the Western Kingdom and become a Queen there. It was because of the bed that the King and Queen were sleeping on. It was decorated with gems that has healing magic, said that it can heal any illnesses. So she was finally able to concieve a baby (even Navier haven't realized it yet on the latest raws). NOBODY KNEW THIS ESPECIALLY SOVIESHU, so when the news came that Navier was pregnant, he instantly assumed that HE is the one that is infertile. He started suspecting that Rashta's baby wasn't his and later on he imprisoned Rashta and banished the baby away from the empire (this was the middle stage of his so so soooo miserable life. Because HE IS NOT INFERTILE, and he IS the father of the baby, but he banished the only Royal Princess after he fucking did all this divorce thing because he doesn't want his child to be illegitimate (this is one of the reasons beside the fact that he loves Rashta)
Another Spoiler. A spoiler that WE ALL WANT.
Rashta will die. She will poison herself. The poison was given by the Emperor Sovieshu.
Sovieshu's life will only be filled with darkness (i almost pity him but he brought it to himslelf) he will realize that it was Navier that he truly loves, and he will be depressed by the fact that he pushed her away and now she is sooo happy with another man and doesn't want to go back to him anymore. There was even a scene where he was already hallucinating and chasing a running Navier, he later fell on the balcony and had an abnormal kind of amnesia. In the morning his memories were 3years back (i think they just sat on the throne here) he will sleep, and then in the evening his memory of the present times will come back. (he truly is miserable)
Right after he banished her daughter, Duke Ergi wrote a note to him that he was indeed the father of the baby. But when he chased the carriage, it was already too late. The carriage was on the border of the two kingdoms and were attacked by the bandits. The coachman and the nanny where found dead and the babh was nowhere to be found.
ANOTHER REVALATION. All of these was part of Heinley and Duke Ergi's plan to crush down the Eatern Empire to ruins. Duke Ergi used the opportunity of the chaos the concubine Rashta brings to the empire, and monopolizes most of her desicions (Rashta is a fool and u already see that he fully trust Duke Ergi). THOUGH, Navier becoming the Western Queen wasn't part of the plan. Heinley truly fell in love with her.
There were still so so many spoilers that i have left out since i want u guys to read it urself and feel the satisfaction of seeing Rashta and Sovieshu fall into ruins. hehe. (づ ̄ ³ ̄)づ