At Timolin in County Kildare, an entire complex of medieval religious and military structures has essentially vanished. Where a church, belfry, dormitory, courtyard, nunnery, and castle once stood, there is now no visible surface trace. The site is peculiar precisely because of that absence; the documentary record describes a substantial ensemble of buildings, yet the ground keeps none of it visible.

The monastery is traditionally attributed to St Moling, Bishop of Ferns, and assigned a seventh-century foundation, though nothing from that early period survives above ground. By the time of its dissolution, an inquisition held at Naas in 1541 recorded the complex in some detail, noting the walls of a church, a belfry, a dormitory, a courtyard, and three rooms within the precinct. Alongside the monastery, an Arroasian convent, a reformed order of canons regular that spread through Ireland from the twelfth century, was probably founded around 1200, likely by a member of the FitzRichard family. A carved effigy associated with that foundation still survives nearby. Accounts of a siege of Timolin in 1643 mention both a nunnery and a castle in addition to the church and belfry, suggesting the site retained considerable complexity well into the seventeenth century, though none of those structures left legible remains. Beneath the present landscape, two possible souterrains, the term for underground stone-lined passages associated with early medieval settlements, have been identified: one discovered beneath a road to the north of the present cemetery, and a second close to the eastern end of the existing church.