Going Places

Character-locked: Jarl Hæsteinn in 867 (the Steam text still says "of Nantes"; in current versions he sits in Montaigu - same chap). The wiki route: declare war on Cornwall with the Conquer Duchy CB - it's a walkover unless Cornwall lands a strong ally, in which case just restart. Move your capital there, convert to the local culture, recreate the Duchy of Cornwall, then take the Restore the Kingdom of Cornwall decision for your kingdom-tier title. Hæsteinn is also the star of the far madder Fishing in China, so you may meet him again.