Don't know how strange this is but it seemed pretty strange to me!
Provence ran away from my Burgundian Blob in Europe and relocated to South America from where they have become an economic powerhouse expanding to cover most of South America as well as colonising North America and parts of Africa. They have the second largest economy in the world at this point.
We also have an AI formed Russia in the East becoming something of a behemoth with the potential to threaten my Eastern frontiers, particularly if I form the HRE.