Montgomery Castle

Montgomery Castle is a medieval fortress set on a steep hilltop in Montgomery, Wales, with remaining stone walls and tower structures visible throughout the site. The layout shows how it was designed to control the landscape and demonstrate military power over the surrounding territory.

King Henry III ordered the construction of this fortress in 1223 to strengthen English control over Welsh lands and counter the power of Prince Llywelyn ap Iorwerth. The site later became the setting for the Treaty of Montgomery in 1267, which marked a turning point in English-Welsh relations.

The castle is called Castell Trefaldwyn in Welsh, reflecting how the site holds meaning for both English and Welsh communities through its role in their shared history. Visitors today see it as a place where two cultures met and negotiated.

The grounds are open year-round and accessible without barriers, though the steeper terrain means sturdy footwear is advisable for safe movement across the site. The condition of paths can be affected by weather, with muddy or wet conditions common after rain.

The Treaty signed here in 1267 was the first time an English monarch officially recognized a Welsh Prince as a legitimate ruler rather than a conquered subject. This diplomatic moment often goes unnoticed, though it represents a shift from pure military dominance to negotiated coexistence.

Location: Montgomery

Inception: 1223

Elevation above the sea: 203.8 m

Part of: Cherbury Estate

Website: https://cadw.llyw.cymru/ymweld/lleoedd-i-ymweld/castell-trefaldwyn

GPS coordinates: 52.56335,-3.14989

Latest update: December 8, 2025 19:40