That is a very good question. It leads to others (as all good questions do)...yaralindi wrote:The question is, what would Tywin have done had Tyrion been born first and Jamie second?
Had Tyrion been born first, would there even have been a second child? Presuming Lady Lannister's death at Tyrion's birth, then Tywin would certainly have remarried, and then I think you're right that it's very likely that the birth of a healthy "proper" son would have been followed very shortly by Tyrion having a fatal accident/disease. On the other hand, presuming that his wife lived through the birth, what would Tywin's reaction have been to his firstborn being, in his eyes, malformed? Would he have even tried to have another son after that? Tywin would certainly have considered it expedient to find new breeding stock,as it were. Would he have divorced his wife (or whatever they call it in Westeros)? Would the law even allow him to do so? I don't remember if her family was ever mentioned, but would they have let Tywin set her aside? Or would an accident/illness have befallen her?
As always, you leave me with much to think about.