Wessex in classical heraldry and is found on a number of church windows in derived shields such as the Arms of the Collegiate Church of St Peter at Westminster (Westminster Abbey, which was founded by the king). At its greatest extent Wessex encompassed the modern areas of Hampshire, Isle of Wight, Dorset and Wiltshire, as well as the western half of Berkshire and the eastern hilly flank of Somerset. This covers an area of about . The English author Thomas Hardy used a fictionalised Wessex as a setting for many of his novels, adopting his friend William Barnes' term "Wessex" for
Æthelberht, King of Wessex and S 336) Æthelred makes grants as king of the West Saxons and Æthelberht is not mentioned. In Keynes's view, Æthelberht may have delegated some power in Wessex, perhaps in his own absence. However, a charter of Æthelberht dated December 863 (S 333) is attested by Æthelred and Alfred as "filius regis" (king's son). Æthelberht granted immunity from royal and judicial services to Sherborne church in honour of the souls of his father Æthelwulf and his brother Æthelbald. Unlike most charters, which were in Latin, this one is in the Old English, and historians disagree whether this reflects a trend