Re: OOC
Gray, both the house's history, including founding, and the 1d6 each player gets will change the House's stats.
White, feel free to help the other players with any rules questions they might have in regards to character creation. If we interpret the rules differently, we'll talk about it at the time. We will be talking about character backgrounds and roles and such towards the end of the House Building process. That doesn't mean we will bring up all of their background.
Brown, we are being faithful to the culture of the setting. So unfortunately, there are no female heirs in the House.
Orange, I haven't read the books so I cannot say what they say on the subject. But the core rules are clear on the subject. The first son is worth more than the first daughter outside of Dorne. In regards to the needed investment of resources.
I have another question to you all. What is your view on player vs. character knowledge? Would you be fine with your character sheet and backstory being public to the players? The benefit of this would be that it would be easier for the other characters to know what you are good at and what you are not good at. You are a House and would likely know such things. The other side of the coin is do you trust the other players not to let what they know, but their character doesn't influence how they act.