The Church of Llandrillo yn Rhos. A fter the withdrawal of the Roman Legions from Britain in the time known as 'the Dark Ages', or here in Wales 'the Age of the Saints', there arrived on their shores missionaries from Brittany and Ireland to convert the 'heathens'. Prominent amongst those who came in the 6th century was Trillo who established his church, or llan, in the vicinity now known as Rhos on Sea. Llandrillo was originally the mother church of a large parish which included places as far apart as Eglwysbach and Eglwys Rhos (llan rhos). Where the first building stood is uncertain.
