It's Renly's right to name his successor, provided said successor either marries into house Baratheon or bears Baratheon blood. Other Renly hasn't married into house Baratheon and definitely doesn't have Baratheon blood.
Other Renly is adopted into house Baratheon , it's a rare thing, but adoption can happen, and the adopted child can inherit.
The "adoption" was as far as official as you can get. For it to be an actual adoption, Robert as the king and head of house Baratheon would have had to approve it, and he absolutely didn't. This wasn't adoption, this was a supernatural force slipping in a replacement so intricate and detailed that nobody would have just cause to suspect other than "he's too good, isn't he?"
You're seriously hoping for too much there. Stannis will take one look at the situation, think, "That's something that's not my brother in our house's ancestral seat," and then try everything in his power to remove Other Renly.
That's flimsy at best. It'd be like naming one of Lya's constructs her heir because she used her blood to make them. It'd be like including a simulacrum as a recipient in our will. And I certainly don't see Stannis buying that argument. In his eyes (hell, in the eyes of the vast majority of stormlanders) Baratheons are born, not created. Just because Other Renly was created with the blood of the real Renly doesn't mean he has an actual claim to the Stormlands.
Stannis can be turned to be a pain in his brother's ass. We have put far too much effort into that to ever abandon that plan.
I think you are a little too negative, sure if we just tell it as it is he will probably react like that, with our diplomacy score however, I'm sure we can get him to try to talk it out first at minimum.
I the absence of other children or selected heirs I would propably call Lya's Arcanum's her heirs.
I'm really not being too negative, you're being unrealistically optimistic.
Which is the nice thing about the whole situation, but I still want to maximise our gain.
One way or another I want Other Renly working for us in some capacity.
I mean, bottomline the only reason we're meeting in the first place is because we have Stannis and Other Renly offered a ransom.
I think we can convince him to at least try diplomacy first, and I think other Renly can be convinced to agree to a compromise, probably something about them working together to find the original Renly.
Doubt it. This is Stannis, he'll break every bone in his body before he gives an inch on something like this. Allowing some imitator to pass as his brother and rule the lands that belong to him by right, even temporarily? He wouldn't agree to that any more than he would have to waiting while Joffrey ascended to the throne.
