Which preposition to use with berwickshire

from Occurrences 2%

For the greater part of its length it divides Berwickshire from East Lothian; but at its seaward end there is one Berwickshire parish lying to the north of itthe parish of Cockburnspath.

for Occurrences 1%

There were times when we thought that he was but a clever impostor; for what could a man of such influence and talents be loitering here in Berwickshire for?

Which preposition to use with  berwickshire