Edward I - Welsh Castle Building
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Llewelyn ap Gruffyfdd the Prince of Wales had consistently failed to do homage to Edward I, King of England.
The Welsh Prince had been paying sums of money to the English crown as agreed in the
Treaty of Shrewsbury of 1267, but after the death of Henry III the payments had stopped.
Edward's repeated demands for a meeting with Llewelyn were ignored and in an attempt to stir
up internal problems in England, Llewelyn had sent to France for Eleanor de Montfort who had
been promised to him as a bride for his involvement in the Baronial revolt against
Henry III. Eleanor was captured by the English on the journey to Wales and was kept prisoner by
Edward. Edward had no choice but to deal with the rebellious Llewelyn and began his war on the Welsh
with a massive amount of castle building.
To successfully attack the Welsh in the north of the country, Edward had to have a strong supply
line for his army. Invaders of Wales had always found it hard to subdue the Welsh because it was easy for the Welsh to use the mountainous terrain to
cut off attacking armies from their supplies. To solve the problem Edward
built a series of castles along the north coast where they could be easily resupplied from the sea.
Flint Castle in Clwyd was begun in 1277 and was one of the first castles to be started. Rhuddlan castle
was started shortly afterwards. The design of these castles was based on fortifications Edward had
had seen on his travels in France and consisted of a strong castle attached to an
enclosed town. The town was populated with English traders who could supply the army and
start trading with the local Welsh people.
Map of Wales showing the location of Edward's castles
Llewelyn was defeated at the end of 1277 and he paid homage to Edward. The building work
at the castles of Flint and Rhuddlan continued, including the construction of a deep
water channel to link Rhuddlan Castle to the sea some three miles away allowing
supply-ships access. Further castles were begun at Aberystwyth, Ruthin and Hawarden.
There was peace in the area until March 1282 when David, Llewelyn's brother, attacked
and captured Hawarden castle. Aberystwyth was under construction and was destroyed while
Flint and Rhuddlan came under siege. The uprising was over quickly with the death
of Llewelyn and the capture and execution of his brother David in 1283.
Edward captured the castles of Dolwyddlan and Criccieth in North Wales and began another huge
undertaking of castle building. These castles included Caernarvon, Conway, and Harlech.
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