Why is the Rûm gone? run as Asturias, which went for ~15 years longer because I didn't read the achievement requirements properly - I had The Knights hold most of Anatolia as a Vassal and you need to own the state of Rûm directly.
Desmond, Alen
çon, and Kongo (only holding the coastline - never got around declaring a Reconquest war on their behalf) are vassals, the Commonblob a random PU. They didn't even have my dynasty on their throne; they had a Habsburg when they got rid of Elective Monarchy and kept the dynasty, but Austria was in a regency when the Polish king died without heir, I had an alliance+RM with the PLC and a lot of luck, apparently. Russia contested, but that was long past the point where I've outgrown the other powers.
The whole world. I focussed a lot on the Americas as a bit of a handicap for myself and the only remaining European powers in America are Denmark (with the Norwegian CN Vinland) and the Netherlands. Speaking of - I didn't have the heart to do something about the Dutch in the new world because that's a very beautiful Netherlands right there. If I caught the events correctly, Burgundy took the option to consolidate the low countries into one Netherlands PU, which then grew quite a lot threw the "XY joins the republic" events to the point where they were too strong for Burgundy to contain.
Colonial Nations seem to be really bad about fabricating claims. I marked all of the Maya and Nahuatl lands as special interest, but my Mexican CN never fabricated a single claim in more than 150 years. I dropped Explo and never took Espionage, so all I could do was send a colonist and get claims / Holy War CB, but apart from the Incan tags, I intended to wait for Imperialism CB, which is a decade or so away at this point.
A lot of my African lands are taken from other Europeans and I only started filling the gaps after spawning all the CNs in America. I know that Australia looks a bit funky right now, but I wanted to make sure that the CN (which is about 500 settlers away from spawning) would colonize the entire region on its own (well, with some subsidies).
Yes, that is Qing in the far east. They recently lost a war to Russia though, so I suspect they wouldn't look as strong in 1820 if I continued the game.