Tremeirchion’s earliest history is undoubtedly centred on the famous limestone caves that have been found to contain some of the earliest evidence of human existence in Wales.  The area around Tremeirchion is covered in Bronze Age barrows, such as the Criafol Round Barrow and two round barrows on Moel Maen Efa, and this would indicate a continuation in settlement from very ancient times.

Tremeirchion appears in recorded history with the Domesday Book of 1086, in which it is recorded as ‘Dinmersch’, a tiny settlement of 2 villagers and a servant.  The church appears in the Norwich Taxation as Dymneyrchyvan.  Only after the Reformation under Henry VIII in the 1530s does village appear with the ‘Tre’ instead of the ‘Din’.  The name of the village translates as ‘the fort of Meirchion’, and a legend suggests that Meirchion was an ancestor of the head of one of the Fifteen Tribes of North Wales, who had a court at Llysmeirchion (018683), just outside of Henllan.

Its history remains a mystery with investigations failing to clarify centuries of the village’s past.  For example, there would seem to be a vague curvilinearity to the churchyard, but not enough to say with any certainty that this is evidence of an early medieval foundation.  The Church of Corpus Christi has an unusual dedication and perhaps a late 13th century foundation, along with 13th and 14th century fragments of sepulchral slabs and a rather wonderful 14th century effigy of a knight and a canopied tomb of the same century.

In the churchyard is the so called, ‘Rood of Grace’, returned from the nearby St Beuno’s College as a millennial gift to the village.  And with the mention of St Beuno, it is worth noting that this area of North Wales is inextricably linked with the famous saint, noted for divinely reattaching the head of his niece, St Winefride.  Nearby Brynbella is noted for being the home of the famous Hester Thrale and her second husband, Gabriel Mario Piozzi.

Indeed, for such a small village, it is certainly full of intrigue, history and legend that stretches back to the very earliest of times.  Whether it be the ancient Gae Gwyn Cave or the Devil built home of Sir Richard Clough, Tremeirchion is a fascinating place to visit.