The earliest known charter was granted by the Bishop-elect of Winchester, Aymer de Valence. He signed it at his ecclesiastical estate of Swainston Manor in 1256. The early hopes for its success are reflected in the names of its streets, such as Gold Street and Silver Street. However, it will have had competition from Yarmouth, Newport and Southampton. In 1284 it was somewhat reluctantly given to Edward I. Apparently there were about 60 families living in Newtown at the start of the 14th century.