Usually the suggestion is to start with some tiny country in CK as opposed to, say, the Byzantine empire, to try and get around things like that. The advice is

Usually the suggestion is to start with some tiny country in CK as opposed to, say, the Byzantine empire, to try and get around things like that. The advice is so taken to heart that the tutorial for CK3 starts in a slightly modified Ireland, which used to be referred to as “tutorial island.”