The English Crown already had a means of governing South Wales in the honours of Carmarthen and Cardigan, which went back to 1240. These became counties under the government of the Justiciar of South Wales (or of West Wales), who was based in Carmarthen. The changes of the period made little difference in the substantial swathe of land from Pembrokeshire through South Wales to the Welsh Borders which was already in the hands of the marcher lords. Nor did they alter the administration of the royal lordships of Montgomery and Builth, which retained their existing institutions.