Well, this empire has costed me more hours of my life than I'd like to admit.
The picture is from 1776, less than half a century away from endgame.
Holy Roman Empire, formed from Austria, historical 1399 start, normal diff. Gold color is because the HRE green is very hard to spot, and I like gold. I'll try to make a summary:
1399 - 1560: Begun as Austria. Expanded normally; became emperor. In a lucky twist, managed to claim the throne of France. United the HRE; Integrated France; waited for overextension to fade. Minor holy wars; married Spain and England. Claimed Spanish throne, then English throne; integrated, then waited for impossible infamy to fade. As a pastime, started to colonize.
1560 - 1650: Roaring rampage of Holy Wars; managed to dig all the way to China and Korea. Colonization expands rapidly. Switched to Absolute Monarchy and gained Imperialism CB on everyone; put it to good use. Russia starts blobbing northern Asia.
1650 - 1770: Turns out, what was meant to be a pastime turned out to be the best investment the Empire has ever made. Colonized over 99% of the Americas, Phillipines, Australia and Africa. Now, having cored roughly entire Europe, Northern Africa, Middle East and most of the colonies, the Empire is, in fact, invincible. Conquest, conquest, conquest. And then some more conquest. Left Russia alone; it was far more worth to take as much land possible in blitzkriegen against small country alliances.
1770 - 1776: Having no worthy opponent left, the Empire takes on Russia. Outnumbered six to one and being about 150 years behind in Land Tech, the Bear stands no match. But it would still take too many wars to chip off the many territories, so I got sick of it and made a Poland new game.
Any opinions are welcome.