near Mollington, Ledsham and Willaston. This road may have continued to the port at Meols, which may have been used as a base for attacking the north Wales coast. Storeton Quarry may also have been used by Romans for materials for sculpture. Remains of possible Roman roads have also been found at Greasby and at Bidston. By the end of the Roman period, pirates were a menace to traders in the Irish Sea, and soldiers may have been garrisoned at Meols to combat this threat. Although Roman rule ended with the departure of the last Roman troops in 410, later coins and other material found at Meols show that it continued to operate as a trading port. Evidence of Celtic Christianity from the 5th or 6th centuries is shown in the originally circular shape of churchyards at Bromborough, Woodchurch and elsewhere, and also in the dedication of the parish church at Wallasey to a 4th-century bishop, Hilary of Poitiers. The Celtic names of Liscard and Landican (from llan-T/Decwyn) both suggest an ancient British origin. The name of Wallasey, meaning "Welsh (or foreigners') island", is evidence of British settlement. The Welsh name, both ancient and modern, for the Wirral is Cilgwri. In Welsh mythology, the ouzel (or blackbird) of Cilgwri was one of the most ancient creatures in the world. English and Norse The Anglo-Saxons under Æthelfrith, king of Northumbria, laid waste to Chester around 616. Æthelfrith withdrew, leaving the area west and south of the Mersey to become part of Mercia, and Anglo-Saxon settlers took over the Wirral except the northern tip. Many of the Wirral's villages, such as Willaston, Eastham and Sutton, were established and named at this time. Towards the end of the 9th century, Vikings began raiding the area. They settled along the Dee side of the peninsula, and along the sea coast, giving their villages names such as Kirby, Greasby and Meols. They introduced their own local government system with a parliament at Thingwall. The pseudo-historical Fragmentary Annals of Ireland appears to record the Hiberno-Scandinavian settlement of the Wirral peninsula in its account of the immigration of Ingimundr near Chester. This Irish source places this settlement in the aftermath of the Vikings' expulsion from Dublin in 902, and an unsuccessful attempt to settle on Anglesey soon afterwards. Following these setbacks, Ingimundr is stated to have settled near Chester with the consent of Æthelflæd, co-ruler of Mercia.