I'm playing a game switched from vikings to england, builld a few cities in england, that get subverted...
Building a city under london (birka) when you viking results in bug, with the city not being destroyed and england unable to build London and egts pushed out of the borders. Similar to older bugs like this I reported, was with babylon building a city near persia's spawn for example in the past. Seems to effect when a city is next to the spawn, as building london as viking, the city does get wrecked.
Founded protestantism as England; Protestantism holy city: None, Regardless if you embrace, tolerate or supress. There isn't a holy city appearing, not even next turn, is this intentional?
Also Vassalage is something wrong with, As it says you get cost even if you have less troops then it covers.