Fire Eater, there words aren't " Beneath the gold, the bitter steel." for nothing. Vengeance is coming, and soon all dogs of the falseborn most pay their do's.
Except all the dogs of the falseborn are the majority of lords in Westeros. Daeron was trueborn, Daemon spread those rumors of him being Aemon's bastard since he wasnt exactly going to say "I'm a royal bastard trying t overthrow my trueborn brother for personal reasons."
They would accomplish nothing by killing Barristan for something he did before they were born or were kids, and before they even joined the GC. Especially sinc ethey believe they are supporting a Targaryen. I think they would rather have Barristan join them given his PR status, and have him with Aegon, being seen as a continuation of the Targaryen regime. Neither Connington nor Aegon would want him dead.
I don't think they'll get the chance as Barristan may die before getting to Westeros.
Edited by Fire Eater, 04 May 2014 - 11:18 AM.