During the Wars of the Roses the Lancastrian-held castle was surrounded by an immense Yorkist army commanded by William Herbert of Raglan.
Yn ystod Rhyfelodd y Rhosynnod, amgylchynwyd y castell, a oedd ym meddiant y Lancastriaid, gan fyddin Iorcaidd anferthol dan reolaeth William Herbert o Raglan.