Raglan Castle is a magnificent late medieval fortress located just north of the village of Raglan in Monmouthshire, southeast Wales. It is renowned for its unique blend of military architecture and Renaissance elegance, making it one of the grandest castles ever built by Welshmen. Construction of the current castle began in the 15th century under Sir William ap Thomas and was significantly expanded by his son, William Herbert. The castle features a large hexagonal keep known as the Great Tower o