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Ballymoon Castle: An Unfinished Medieval Enigma

Explore the mysterious Ballymoon Castle in County Carlow: a striking 13th-century ruin with massive walls and an unfinished story.

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Ballymoon Castle, located near Bagenalstown in County Carlow, is a striking yet mysterious 13th-century ruin. Its massive granite walls and unfinished interior spark the imagination, offering a glimpse into a turbulent period of Irish history and the ambitions of its Anglo-Norman builders.

A brief summary to Ballymoon Castle

Local tips

  • Wear comfortable shoes, as the ground around the castle can be uneven.
  • Bring a camera to capture the unique architecture and scenic views.
  • Visit nearby Ballyloughan Castle, which is only a short distance away.
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Getting There

  • Driving

    Ballymoon Castle is located off the R724, approximately 3.5 km east of Bagenalstown. From Bagenalstown, follow the R724 towards Fenagh. The castle will be visible on the left-hand side of the road. Parking is limited to a gated entrance to a field opposite the castle, with space for only one car. Exercise caution when parking due to the busy road. Access to the castle is via a small wooden footbridge over a stream.

  • Public Transport

    The most practical way to reach Ballymoon Castle via public transport is to take a bus or train to Bagenalstown. From there, it is approximately a 3.5km walk east along the R724 to the castle. Local taxi services may also be available in Bagenalstown for the final leg of the journey. A taxi from Bagenalstown to Ballymoon Castle would cost approximately €10-€15.

  • Walking

    From Bagenalstown, Ballymoon Castle is a walk of approximately 3.5km. Head east from the town center along the R724 (Kilcarrig Road). Follow this road, and you will see Ballymoon Castle on your left. The walk should take around 45 minutes to an hour. Be aware of traffic on this road.

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Discover more about Ballymoon Castle

Ballymoon Castle, situated a few kilometers east of Bagenalstown, County Carlow, presents a captivating enigma to visitors. This National Monument, dating back to the 13th or early 14th century, stands as a testament to Anglo-Norman ambition and the unsettled times in which it was built. The castle's most striking feature is its incomplete state, fueling speculation about its intended purpose and the reasons for its abandonment. The castle comprises a square courtyard, each side measuring approximately 24 meters (80 feet), enclosed by imposing granite walls. These walls, about 2.4 meters (8 feet) thick at the base and rising to a height of 6 meters (20 feet), evoke a sense of formidable strength. Square towers project from three of the sides, while the fourth side features a gatehouse, further emphasizing the castle's defensive design. Arrow loops and gun loops are visible in the walls. Inside the courtyard, little remains of the internal structures, save for the foundations. The remnants of fireplaces and what appears to be a great hall on the north side offer hints of the intended layout. The absence of substantial remains has led to the local legend that the castle was never completed or inhabited. Historians suggest that either Roger Bigod, 5th Earl of Norfolk, or the Carew family, who acquired the land after Bigod's death, initiated the construction. The castle's purpose was likely to defend the border between the Normans and the Gaelic Irish in the Wicklow Mountains. The building was intended to be two or three stories high, but construction stopped just above the first floor. Access to the castle is via a small wooden bridge over a ditch from the Fennagh Road (R724). The surrounding meadow offers views of Mount Leinster, adding to the atmospheric setting. Exploring the castle grounds and imagining its intended grandeur provides a unique glimpse into medieval Ireland.

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