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Outlined — Esker

Bawn

Why this matters

Esker Castle is associated with the Ó Cellaigh (O'Kelly) clan of east Galway and was likely built in the 15th or 16th century. It is remembered as part of the defensive network of Gaelic lordships in the region during the late medieval period.

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Overview

Outlined — Esker is recorded as Bawn in Offaly. Esker Castle (OF006-031001-) stands on the SW angle of a large walled bawn area to the N and E of the castle. There are several stone buildings now covered in briars and trees to the N of the castle which were built inside the bawn wall.

Who built and held it

The saved account records: The wall footings of several buildings of unknown date are located to the N of the castle where they are built against the internal face of the bawn wall.

Attack, change and use

The saved account records: Esker Castle (OF006-031001-) stands on the SW angle of a large walled bawn area to the N and E of the castle.

What survives

The saved account records: There are numerous gun-loops visible in the N and S walls of this ivy-covered bawn which in places survives to a height of c. 2m and in other places especially along the W side only the wall footings of the bawn wall survives.

Why it mattered

Outlined — Esker matters because the source ties bawn to this exact landscape and preserves evidence that a bare map name loses. The saved account adds: There are several stone buildings now covered in briars and trees to the N of the castle which were built inside the bawn wall.

History checked 15 August 2026 against the named sources below.

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