I haven't done much yet in this game apart from trading, building buildings, giving miltary access to everyone and sponsoring a patriot rebel doomstack when thanks to Burgundy being at war with Trier and occassion for doing so arose (In an environment of 2PMs, 11k is a lot) that spent most of its time sieging Koblenz, taking it, sieging Worms, losing Koblenz to Mainz (Trier was already dead, half defected to me and half conquered by Mainz who got Claims on their rivals in like 1405 already why I still haven't gotten any claims after 35 years of a Diplo 8 leader, and not a single boundary dispute either), taking Worms, going back to Koblenz, losing Worms to Palpatine, etc. Eventually they managed to collapse Mainz though, took Pfalz but unfortunately, after they had been so obsessed with Worms previously, marched off to Alsace instead (who defected), then to Baden and then to Switzerland where they died. Oh well.
Anyway, what's more interesting is that
Iberia. An Iberia in which 9 (not counting Foix) different nations have provinces. I don't think I've ever seen that before. Also pleasant is the lack of Castillian North Africa.
What I dislike is having a mission to vassalize Ansbach, who is Allied with me, my lovely light blue neighbor my rebels were to stupid to take over and Thuringia and guaranteed by me, Baden, Bavaria, Brunswick, Hesse, Cologne, Pommerania, Thuringia, Würzburg, Württemberg, Utrecht and the Hansa. Surely I could take these nations and the allies Utrecht (who, thanks to another early claims on their rivals, what's with Theocracies and that event?, is rather scary) or Bavaria would bring in with my 5 mainly grain-producing provinces, but considering how much work that would be... rather not.

Oh, they're in Austria's sphere, too.