Editing Æthelred I of Wessex (section)

== Early life ==
[[File:Charter S 332 dated 863 of KIng Æthelberht of Wessex.jpg|thumb|upright=1.25|Charter S 332 dated 863 of [[Æthelberht, King of Wessex|King Æthelberht]]. Æthelred attests second from bottom on the left as "Æthelred ''fil[ius] reg[is]''".]]

Æthelred was the fourth of five sons of King Æthelwulf. His mother, [[Osburh]], was of West Saxon royal descent. According to the historian Sean Miller, Æthelred was probably a year or so older than his younger brother, the future Alfred the Great, who was born 848–9,{{sfn|Miller|2004}} but Richard Abels says that Æthelred was around eight years old in 853, which would mean he was born about 845.{{sfn |Abels|1998|p=67 n. 57}}  Manuscript A of the ''Anglo-Saxon Chronicle'', which was written in the 890s, states that in 853 Alfred was sent by his father to Rome and was consecrated by the Pope as king. Historians do not believe that he was consecrated king at this young age and the real nature of the ceremony is explained in an extract from a letter of [[Pope Leo IV]] to Æthelwulf, which records that he decorated Alfred "as a spiritual son, with the dignity of the belt and the vestments of the consulate, as is customary with Roman consuls". The contemporary ''[[Liber Vitae]]'' (confraternity book) of [[San Salvatore, Brescia|San Salvatore]], [[Brescia]], records the names of both Æthelred and Alfred, indicating that both brothers went to Rome. It is likely that Æthelred was also decorated by the pope, but the ceremony was later regarded as foreshadowing Alfred's greatness and neither the chronicler nor the eleventh-century extractor from the Pope's letters were interested in recording the presence of his lesser known elder brother.{{sfnm|1a1=Nelson|1y=2004|2a1=Keynes and Lapidge|2y=1983|2pp=69, 232|3a1=Swanton|3y=2000|3pp=xxi, 64|4a1=Whitelock|4y=1955|4p=810 (no. 219)}}

Æthelred first witnessed his father's charters as ''filius regis'' (king's son) in 854, and he witnessed with this title until he succeeded to the throne in 865. He may have acted as an underking before his accession, as in 862 and 863 he issued his own charters as King of the West Saxons. This must have been as deputy or in the absence of his elder brother, King Æthelberht, as there is no record of conflict between them and he continued to witness his brother's charters as a king's son in 864.{{sfnm|1a1=Miller|1y=2004|2a1=Abels|2y=1998|2p= 50}}{{efn|The first charter which Æthelred witnessed was S 308 in 854.{{sfn|Abels|1998|p=50}} He issued charters S 335 in 862 and S 336 in 863 as King of the West Saxons. He witnessed S 333, issued by King Æthelberht in 864, as ''filius regis'' (king's son). [[Simon Keynes]] defends the authenticity of S 335 and S 336.{{sfn|Keynes|1994|pp=1124–30}} "S" means the number in the [[Peter Sawyer (historian)|Sawyer]] catalogue of Anglo-Saxon charters.}}