I've searched around and can't find a definitive answer on this, playing my first ironman game as Castille and accepted this modifier on Seville for a decent heir. Gives plus 0.10 autonomy per month on Seville, which is my main trade node. Does this last just until the queen regent dies, or for the rest of the game? Online answers seem to suggest it's until she dies, but the tooltip when I took it stated 'until the end of the game'. Just want to know if I sewered my whole economy for the run for one heir or if I can recover - didn't really understand what the autonomy modifiers meant when I accepted.