The site is listed as a protected monument, which tells us something in itself: enough survives, or survived, to warrant formal recognition, yet the details that would allow a curious reader to place it in time or understand its original purpose remain, for the moment, undigitised and out of easy reach.

The townland name offers a small clue worth sitting with. "Mona" derives from the Irish "muine", meaning a shrubbery or thicket, while "parson" points fairly directly to an ecclesiastical connection, possibly a Church of Ireland living or a glebe associated with a Protestant rector in the post-Reformation period. That combination suggests a site with medieval origins that may have passed through different hands and different denominations across the centuries, as happened with so many rural Cork churches whose histories straddle the Gaelic, Norman, and colonial eras. Whether the standing remains are early medieval, late medieval, or post-medieval is precisely the kind of question that the physical fabric of the walls, if any remain, might begin to answer for someone willing to look closely.