I dont recall Henry and Eva being siblings. I also saw the first 10 min of the episode and I believe Eva was there just visiting. The king intending to marry prince Henry off to her. Which is why Cora tells the king while dancing with him that instead of sharing the gold she can make he can just whore the prince off. I recall a lot of people in the audiance going ooohhh when she said that.
[adrotate group="5"]