That looks fishy. Why do your three provinces in Mauritania and Africa just happen to be the three you need to reform the faith? And why does your priest have counties in north and central Europe? Did you swear fealty to a Norse king at some point?
Fabricated claims on those counties obviously.
As for the Norse connection, took Brittany from Haesteinn for the political reach and then married a few daughters into the Danish royal family. Two Generations later I took my Danish niece as a concubine and pressed her claim for the throne, Adja being the only child born from the pairing so obviously I slaughtered anyone who stood in her way of inheriting both Kingdoms. Although yes, at one point I did swear fealty to my Concubine-Niece-Queen of Denmark.
Nothing fishy at all, just ruthless and gamey. haha Still not bad for an Ironman Ghana playthrough.