RHOSBEIRIO, or RHOS-PEIRIO (RHOSBEIRIO) a parish, in the hundred of TWRCELYN, union of ANGLESEY and county of ANGLESEY,
NORTH WALES, 3 miles (W. by S.) from Amlwch; containing 32 inhabitants. This parish, which is situated on the shore of the
Irish Sea, is of very limited extent, and comprises only a small portion of arable and pasture land, in a tolerable state
of cultivation. The living is a perpetual curacy, annexed to the rectory of Llaneilian; and the tithes have been commuted
for a rent-charge of X58. 10. The church, dedicated to St. Peirio, from whom the parish derives its name, is a small
ancient structure, supposed to have been originally built about the year 605, and is situated in the centre of a level
field, at some distance from the village; divine service is performed every third Sunday.