TRERCOED, a township, in the parish of DISERTH, union of BUILTH, hundred of COLWYN, county of RADNOR, SOUTH WALES, 4 miles (N.N.E.) from Builth containing 277 inhabitants. This township is bounded on the north by a stream which falls into the river ithon, and near which is Maas Marko, celebrated as the scene of one of the last engagements between Prince Llevearl ab Grufydd and the English. On an elevated are some square fortifications, conjectured to have been British, notwithstanding their form. There is a day -school, in which about 20 childrenare instructed at the expense of their parents.