According to the late 13th century Hundred Rolls, King Henry II of England (d. 1189) gave William of Wrotham lands at North Petherton. Between 1513 and 1535 Sir William Courtenay (d.1535) of Powderham, Devon was the keeper of North Petherton Park. The town itself it thought to have developed around the minster which, it is supposed, was on the same site as the current church. There is archaeological evidence indicating that there were timber buildings to the west of the church in the late Saxon period, and it is suspected that the remains of the Saxon settlement may continue to lie beneath the town centre. Excavations to the west of the church, on what is now the Community Centre site, revealed a 14th-century cemetery, which may have been used for victims of the plague, as well as indicating that the area was redeveloped in the late Middle Ages. It is thought that there may have been a mint in the town during the 10th or 11th century, and a charter to hold a market was granted in 1318, although it is thought that the market predated this. A shire hall, courthouse and guildhall are known to have exited and were probably located north of the church. A minor skirmish of the English Civil War took place in August 1644 outside what was then the cornhill, now the area of Fore Street between the Community Centre and the former George Inn. The Alfred Jewel, an object about long, made of filigree gold, cloisonné-enamelled and with a rock crystal covering, was found in 1693 at Petherton Park, North Petherton. Believed to have been owned by Alfred the Great it is thought to have been the handle for a pointer that would have fit into the hole at its base and been used while reading a book. It is inscribed, "AELFRED MEC HEHT GEWYRCAN," ("Alfred had me made"). It may be one of the "aestels" Alfred had sent to each bishopric with a copy of his translation of Pope Gregory the Great's book Pastoral Care. A replica of the jewel can be found in the church of St Mary. When the Bridgwater and Taunton Canal was opened in 1827 it joined the River Parrett by a lock at Huntworth, where a basin was constructed, but in 1841 the canal was extended to a floating harbour in Bridgwater, and the Huntworth link was filled in.