After the Anglian settlement of the North of England, Anglian York was first capital of Deira and later Northumbria, and by the early 7th century, York was an important royal centre for the Northumbrian kings. Following the Norman Conquest of 1066 York was substantially damaged, but in time became an important urban centre as the administrative centre of the county of Yorkshire. York prospered during much of the later medieval era; the later years of the 14th and the earlier years of the 15th centuries were characterised by particular prosperity. During the English Civil War, the city was regarded as a Royalist stronghold and was besieged and eventually captured by Parliamentary forces under Lord Fairfax in 1644. After the war, York retained its pre-eminence in the North, and, by 1660, was the third-largest city in England after London and Norwich.