I recently left Britania and kept my fiefs. Immediately after I made my own kingdom. I can not change my kingdom banner as there is no option to do so. I figured I would simply leave the kingdom, change my clan's banner, and re-make a kingdom. However in both the kingdom tab and the clan tab the option to "Leave Kingdom" is greyed out and I can not do so. Unfortunately, I do not have a save file to just go back right before creating a kingdom either.
Might I suggest that in the kingdoms tab, top left where the banner shows there be an option to click on it to change it like there is for your clan?
Might I suggest that in the kingdoms tab, top left where the banner shows there be an option to click on it to change it like there is for your clan?