Clan Rising
Granuaile's Castle today

Ireland · Restored

Granuaile's Castle

Caisleán Ghráinne (Cliara)

Granuaile's Castle is a 16th-century tower house on the east coast of Clare Island, built by the Ó Máille (O'Malley) family and associated with Gráinne Ní Mháille (Grace O'Malley). It is a vertical stone tower house retaining its characteristic corner bartizans and a first-floor main living room with an attached garderobe.

Photograph via Wikimedia Commons

Its prime

1580

Today

Restored

As it stood in 1580

What Granuaile's Castle looked like in its prime.

A 16th-century rectangular stone tower house rising from the rocky east coast of Clare Island, standing several storeys high with narrow slit windows punctuating the masonry. Two projecting circular corner bartizans break the roofline; the tower's first-floor contains the main living room with direct access into the bartizans and to a built-in garderobe. Walls are exposed stone; the structure is fully roofed and complete in its prime, sitting close to the shoreline.

Its story

The story of Granuaile's Castle.

The Ó Máille Kings of Umaill and Gráinne Ní Mháille

The tower house on the east coast of Clare Island, off County Mayo, was built in the 16th century by the Ó Máille, or O'Malley, Kings of Umaill. It was a stronghold of Gráinne Ní Mháille, Grace O'Malley, who lived from about 1530 to about 1603 and is remembered as the "pirate queen"; she held two others, Rockfleet Castle on Clew Bay and Carrickkildavnet Castle. The main living room sat at first-floor level, with access from it to the bartizans and the garderobe.

Police Barracks and National Monument, from the 1820s

In the 1820s the tower was converted into a police barracks, and the purple slate flashing on its two bartizans dates from that conversion. The castle is protected as a National Monument.

Step inside

6 places to explore in 1580.

The record describes 6 distinct spots at Granuaile's Castle, including 2 interiors: first-floor main living room, built-in garderobe (latrine) access. Create your own photoreal reconstruction and explore every one, more scenes means more rooms, more angles, and more of the place to stand in.

Approach from the east shoreTower exterior elevationFirst-floor main living roomBartizan (one of two), corner turretSecond bartizan (one of two)Built-in garderobe (latrine) access

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Whose castle

Clans who held Granuaile's Castle.

The families that held Granuaile's Castle for a decade or more across its history, follow a name to its clan.

  • O'Malley

    Built by the Ó Máille (O'Malley) family; a stronghold of Gráinne Ní Mháille, Grace O'Malley, in the 16th century.

Nearby

Landmarks within reach of Granuaile's Castle.

Questions about Granuaile's Castle

What is the history of Granuaile's Castle?

Granuaile's Castle was built in the 16th century by the Ó Máille (O'Malley) family and became a stronghold of Gráinne Ní Mháille, also known as Grace O'Malley. In the 1820s, it was converted into a police barracks, when purple slate flashing was added to the two bartizans. It is protected as a National Monument.

What is inside Granuaile's Castle?

Granuaile's Castle contains a first-floor main living room with access to the bartizans and a built-in garderobe. The garderobe is a latrine, and the living room occupied the first-floor level. These are the documented interior spaces.

Why was Granuaile's Castle built, and what was it used for?

Granuaile's Castle was built as a stronghold for the Ó Máille (O'Malley) family and Gráinne Ní Mháille. Its defensive character is reflected in the vertical stone tower and corner bartizans. In the 1820s, its use changed when it was converted into a police barracks.

Where is Granuaile's Castle?

Granuaile's Castle is on the east coast of Clare Island, in County Mayo. Clare Island is off Ireland's west coast, and the castle stands close to the shoreline. Its location is described as the east coast of Clare Island.

When was Granuaile's Castle built?

Granuaile's Castle was built in the 16th century. The first-raised year is not recorded, while 1580 is given as its prime year. The castle is therefore dated to the 1500s rather than to a specific documented construction year.

Which family or clan held Granuaile's Castle?

The Ó Máille (O'Malley) family held Granuaile's Castle. It was a stronghold of Gráinne Ní Mháille, also known as Grace O'Malley, in the 16th century.

What did Granuaile's Castle look like in its prime?

In its prime, Granuaile's Castle was a rectangular stone tower house rising several storeys from the rocky east coast of Clare Island. Narrow slit windows punctuated its exposed-stone walls, while two projecting circular corner bartizans broke the roofline. It was fully roofed and complete, with the first-floor living room opening into the bartizans and a garderobe.

Is Granuaile's Castle still standing, or is it a ruin?

Granuaile's Castle is still standing and has been restored. The complete, roofed tower house retains its characteristic corner bartizans, exposed stone walls and first-floor main living room. It is not described as a ruin.
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