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Platform rath reused as motte and bailey is a medieval fortification in County Antrim, Northern Ireland. The monument represents an early example of Norman military architecture in Ulster, dating to the Early Christian period or later medieval phases. It occupies a naturally defended position above the surrounding terrain, with its physical form created by the remodelling of an earlier ringfort or platform rath into a motte and bailey earthwork. The site sits on Palaeogene extrusive rocks—ancient mafic lava and tuff formations that underlie much of this part of Antrim—which would have provided a stable foundation for the substantial earthwork construction required for both the earlier Irish fortification and its later Norman transformation.
The monument's two-phase construction history reflects significant cultural and military transitions in the region. The original platform rath served defensive purposes within the early medieval Irish territorial system, whilst the subsequent refortification as a motte and bailey demonstrates the adaptation of existing Irish defensive sites by Norman settlers and their methods of control. Such reuse of earlier fortifications was common across Ulster during the early Anglo-Norman period, taking advantage of proven locations and existing earthwork foundations.
The site is protected as a heritage monument by the Historic Environment Division under reference 3457. Its survival on the volcanic bedrock of north Antrim makes it an important example of how Norman military engineering integrated with the pre-existing Irish landscape and settlement patterns of medieval Ulster.
Platform rath reused as motte and bailey is a scheduled monument protected by Department for Communities NI under reference 3457. View the official record →
Platform rath reused as motte and bailey is a medieval fortification in County Antrim, Northern Ireland. It is designated a Scheduled Ancient Monument by DfC Northern Ireland (NISMR) under reference 3457.
Platform rath reused as motte and bailey dates from the e.christ. period, and is classified as a motte & bailey. It is one of over 32,000 scheduled monuments protected across the UK.
Platform rath reused as motte and bailey is a Scheduled Ancient Monument, legally protected by DfC Northern Ireland (NISMR) — the body responsible for designating and safeguarding heritage sites in Ni. The official designation reference is 3457.
Several scheduled monuments lie within 10 km, including Mound - motte? (7.6 km), Rath group - univallate rath, counterscarp rath & trivallate rath (8 km), Platform rath (8.1 km).
This page is just one thread. A full Aubrey report pulls together 14 strands of Platform rath reused as motte and bailey's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Platform rath reused as motte and bailey stands on Unnamed Extrusive Rocks, Palaeogene, bedrock that formed in the Paleogene. The rock here is mafic lava and mafic tuff.