Maynooth Castle, National monument and medieval castle in Maynooth, Ireland
Maynooth Castle is a stone fortress with a gatehouse and solar tower featuring the combined coats of arms of the Boyle and Fitzgerald families carved into its walls. The structure displays the layout of a medieval stronghold with defensive features still visible across its preserved sections.
The Fitzgerald family began construction of the original fortification around 1203 following a land grant from Strongbow in 1176. Over the centuries, the castle was expanded and remained a seat of power until partial destruction changed its role.
The castle represented the authority of the Fitzgerald family across the Irish landscape and shaped regional life for centuries. Today, the remains tell the story of how this stronghold was central to people's lives and governance in medieval times.
The site sits right next to the university and is easily reached on foot when walking through the town center. Opening hours vary by season, so a quick check before visiting is worth your time.
The fortress experienced a second phase of occupation under the Boyle family, who added new sections and altered its appearance significantly. This blending of two powerful families is visible in the combined arms displayed on the walls.
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