In medieval times Harrogate was a place on the borders of the township of Bilton with Harrogate in the ancient Parish of Knaresborough, and the parish of Pannal, also known as Beckwith with Rossett. The part within the township of Bilton developed into the community of High Harrogate, and the part within Pannal developed into the community of Low Harrogate. Both communities were within the Royal Forest of Knaresborough. In 1372 King Edward III granted the Royal Forest to his son John, Duke of Lancaster (also known as John of Gaunt), and the Duchy of Lancaster became the principal landowner in Harrogate.