I have never seen the idea of Altena inheriting Chalphy when she should be the duchess?
I mean if we consider the inheritance to go older sibling-> younger sibling,..
The heir to Chalphy was Sigurd but he’s dead and it passes to his son, Seliph, who inherits the Grannvale crown, so the fact that Seliph doesn’t inherits both things it’s probably because it is established that he can’t rule two places ( Arvis was the emperor and also the duke of Velthomer but oficially he was the emperor consort so he’s not really the heir to both sides so not exactly the same thing) so it leaves to the older sibling line not suitable for being the heir.
So we have Ethlyn, even that she’s married and it is established that she’s now a Leonster but she should still have rights to her homeland if anything happened.
At the end of the war, Seliph can’t inherit Chalphy but Ethlyn’s older child, Altena, doesn’t inherits anything (even that she was the heir to Leonster if everything didn’t had gone like it went) so having the duke’s granddaughter inherits her grandfather’s land makes more sense than Oifey (even if he deserves only good things)
Maybe she was established as the heir after the war and she just gave up her tittle because she prefered to be at Thracia ( It makes sense, she doesn’t care so much about Leonster I can’t see her caring about Chalphy)
I don’t know, but it would be funny thinking about the Thracian princess now a duchess of one of the duchies of Granvalle








