Population centre

Mountjoy

Muinseo

Two distinct fortifications beside Lough Neagh connect the Mountjoy locality with the Nine Years’ War and the military landscape that followed.

Recorded locationMountjoy54.55224° N · 6.60889° WInteractive map supplied by OpenStreetMap.
Approximate recorded location · Logainm.ie

The name

A reliable full-name meaning has not been established here. The recorded Irish and English forms are given without an unsupported translation.

Recorded forms

  • Muinseo · Irish · main form · validated name
  • Mountjoy · English · main form

Place & story

The surviving castle

Mountjoy Castle stands on a low rise overlooking Lough Neagh. Its rectangular central block has four projecting corner towers, pierced by openings through which defenders could fire along the walls. Stone forms the lower part of the building, with brick above. A hole for a drawbar survives at the former entrance in the south-east wall, another detail of its defensive arrangement. [2]

Two fortifications

The surviving building should be distinguished from the larger campaign fort erected in 1602 during Mountjoy's advance against Hugh O'Neill. The Department for Communities identifies the castle as probably the later fortification described by Sir George Carew in 1611, completed after 1605 beside the older fort. Richard Bartlett's 1602 pictorial map records that earlier earthwork nearer the lough shore. [2]

Excavating the earlier fort

In June 2018, Queen's University Belfast investigated the campaign fort at Brocagh in Magheralamfield townland. Geophysical survey and Bartlett's map guided the excavation, because no remains were visible above ground. Archaeologists exposed an internal defensive ditch, up to six metres wide and 1.5 metres deep, with its accompanying bank. They also uncovered part of a truncated red-brick building within the fort. [3]

Objects from the military site

Finds included pottery, clay-pipe stems, animal bone, glass and lead shot for pistols and calivers. A decorated wine-glass stem suggested an object of greater value than ordinary soldiers could readily afford. The excavation also produced prehistoric flint tools and medieval pottery, evidence of activity in the landscape before the fort. Those earlier objects do not, by themselves, date the military earthworks. [3]

Geographic information

Place type
Population centre
County
Tyrone
Civil parish
Clonoe
Coordinates
54.55224, -6.60889 (approximate)
Logainm ID
135098 ↗

Sources & further reading

  1. Logainm.ie — Mountjoy. Place names and geographic record, licensed under CC BY 4.0.
  2. Mountjoy Castle, TYR047:002 · Department for Communities, Historic Environment Division
  3. Brocagh,2018community excavation · Queen’s University Belfast, Centre for Archaeological Fieldwork

Name record retrieved 2026-10-25 · Source record modified 2019-01-22. How this page was prepared.