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Pretty Mary's Fort is a bivallate rath located near Lisburn, Northern Ireland. Dating to the Early Christian period, this ringfort comprises two concentric earthwork banks that once enclosed a residential and domestic space. The monument sits on bedrock composed of Hibernian Greensands and Ulster White Limestone formations, chalk and sandstone deposits laid down during the Late Cretaceous era. This geological foundation would have presented challenges for the original inhabitants when constructing the defensive earthworks.
The dual-bank design of Pretty Mary's Fort reflects the status and resources of its occupants, as such labour-intensive defences were typically built by families of considerable social standing during the Early Christian centuries. The fort's position within the Lisburn landscape would have offered strategic visibility across the surrounding terrain, important for a settlement requiring both security and awareness of approaching threats or trading partners.
Pretty Mary's Fort is protected as a scheduled monument by the Historic Environment Division under reference 6624, acknowledging its significance as a surviving example of Early Christian settlement architecture in the Ulster region. The monument remains an important archaeological asset, preserving evidence of domestic life and social organisation from the early medieval period.
Pretty mary's fort. bivallate rath is a scheduled monument protected by Department for Communities NI under reference 6624. View the official record →
Pretty Mary's Fort is a bivallate rath located near Lisburn, Northern Ireland. It is designated a Scheduled Ancient Monument by DfC Northern Ireland (NISMR) under reference 6624.
Pretty mary's fort. bivallate rath dates from the e.christ. period, and is classified as a rath. It is one of over 32,000 scheduled monuments protected across the UK.
Pretty mary's fort. bivallate rath 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 6624.
Several scheduled monuments lie within 10 km, including Multi-ditched enclosure (5.8 km), Phil's fort. mound (motte? or raised rath?) (6.9 km), Rath (6.9 km).
This page is just one thread. A full Aubrey report pulls together 14 strands of Pretty mary's fort. bivallate rath'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.
Pretty mary's fort. bivallate rath stands on Hibernian Greensands Formation And Ulster White Limestone Formation (Undifferentiated), bedrock that formed in the Late Cretaceous. The rock here is chalk and sandstone.