MAES-TROYDDYN, a hamlet, in the parish of CAYO, higher division of the hundred of CAYO, county of CARMARTHEN, SOUTH WALES, 11 miles (W. N. W.) from Llandovery: the population is included in the return for the parish. It is situated on the right bank of the Twrch, near its junction with the river Cothy: there are some well-wooded eminences within its limits.