Can someone please tell me why Bear Island is not a High Lordship??? It would seem that it should be... It would also seem to be cannon that it is a High Lordship...
Why would you give an one-county a high lordship?
I believe that it was explained as such: the Mormonts are a prestigious, respected family in the north to be refered to above their station, but their holdings are far too poor and sparse to justify giving them a full Lord Paramouncy.
The Arbor is just one county and gets a High Lordship.
Bornosh (I believe its called.) a North Valyria county ruin is also is a one county de jure duchy.
Actually it is, check again. here is a screenshot of both the duchy of Borosh dejure screen and the map showing de jure duchies. I am also pretty sure it is impossible gameplay wise for a duchy to be apart of two de jure kingdoms at the same time.