This small tower house, likely built in the 16th century, was once home to a branch of the Burke family, Norman descendants who had thoroughly integrated into Gaelic society by that time. The castle’s strategic position overlooking the lake would have provided both defensive advantages and control over local fishing rights, an important economic resource in medieval Ireland.

The structure itself is typical of Irish tower houses from this period; a compact, vertical fortress designed more for security than comfort. Built from local limestone, the castle originally stood three or four storeys high, though much of the upper levels have now collapsed. What remains reveals classic defensive features including narrow window loops, thick walls that taper as they rise, and the remnants of a spiral staircase built into the wall thickness. The ground floor, as was common, likely served as storage, whilst the upper floors contained the main living quarters with a fireplace and larger windows.

Today, Gweeshadan Castle stands as a picturesque ruin, slowly being reclaimed by ivy and weather. Its isolated location means it sees few visitors, making it one of Mayo’s lesser known medieval sites. The castle’s proximity to Lough Conn adds to its appeal; the combination of crumbling stonework reflected in the lake waters creates a scene that perfectly captures the melancholic beauty of Ireland’s abandoned castles. For those interested in exploring off the beaten path, this forgotten Burke stronghold offers a genuine glimpse into the lives of minor Gaelic nobility who once controlled these remote western territories.