 During the heptarchy, the area formed part of the kingdom of Wessex, and relics of Saxon occupation have been discovered in various parts of the county.Of these the most remarkable are the burial grounds at Long Wittenham and Frilford, and there is evidence that the Lambourn valley was occupied in early Saxon times.The cinerary urns found in Berkshire undoubtedly contain the ashes of the Anglians who came south under Penda in the 7th century.