In my first game as England a rebel army appeared on the border between London and Notthingham. London had 190% loyalty and Nottingham 140% so I’m at a loss where those rebels did spring from. In MTW I had no rebels appear on the map as long as I had loyalty above 100%.

Would having a watchtower in the area of Devon helped to make the entirety of the London province visible and would that have prevented that rebel spawning?