Yep, the dad is a shitty dude.

But think about the era. Women can’t be rulers, and are seen as a weakness, which is most likely why he threw his daughter away. If his son is gay, he won’t be able to have an heir, which weakens his hold on the throne. And the struggle for the throne is seriously messed up, you won’t be able to get out of that without killing innocents.

All in all, he’s a shitty, homophobic, sexist, homicidal dude. But for his era, that’s pretty normal. Not to say that the public wouldn’t be shocked if the truth got out. But pretty much all the nobles did stuff like that.