I am the Byz and Venice is my allied vassal. It is 1503 and I just got the mission where if I annex Venice I get cores on Venice and Treviso. Austria owns Treviso and is the HRE and a massive blob superpower. She is currently attacking, successfully another major blob, Bohemia. I am the third major European blob, bigger than either but Austria has better tech and a ton of vassals. France was destroyed by a Burgundy/Denmark/England alliance 50 years ago and is now a middling 7 province power. The question is whether to annex Venice or not. I am 3 points on the free trade side of the slider and own Alexandria, Astrakhan and built a COT on Thrace. I belong to the Venice trade league and have a pile of trade stations formed. If I annex Venice I lose the trade league bonuses and all the trade stations as well as Venice's 35 ships and 15,000 troops. I could join the Lubeck trade league and I would gain the Venice province income and a CB on Austria from Treviso. But my relations with Austria are +142 so the CB won't do me much good without eating the good relations declaration penalty. So is it better to annex Venice or leave her as my vassal? I am currently heading east toward India, mostly as I am not sure I can win a fight with Austria.