Seaford is a town in East Sussex, England, east of Newhaven and west of Eastbourne. In the Middle Ages, Seaford was one of the main ports serving Southern England, but the town's fortunes declined due to coastal sedimentation silting up its harbour and persistent raids by French pirates. The coastal confederation of Cinque Ports in the mediaeval period consisted of forty-two towns and villages; Seaford was included under the "Limb" of Hastings.