Gildas The earliest mention of the Battle of Badon appears in
Gildas'
De Excidio et Conquestu Britanniae (
On the Ruin and Conquest of Britain). In it, the
Anglo-Saxons are said to have "dipped [their] red and savage tongue in the western ocean" before
Ambrosius Aurelianus organized a British resistance with the survivors of the initial Saxon onslaught. Gildas describes the period that followed Ambrosius' initial success:
De Excidio Britanniae describes the battle as such an "unexpected recovery of the [island]" that it caused kings, nobles, priests, and commoners to "live orderly according to their several vocations." Afterwards, the long peace degenerated into civil wars and the iniquity of
Maelgwn Gwynedd. That
Arthur had gone unmentioned by Gildas, ostensibly the source closest to his own time, was noticed at least as early as a 12th-century hagiography of Gildas which claims that Gildas had praised Arthur extensively but then excised him completely after Arthur killed the saint's brother,
Hueil mab Caw. Modern writers have suggested the details of the battle may have been so well known that Gildas expected his audience to be familiar with them.
Bede The battle is next mentioned in an 8th-century text of
Bede's
Ecclesiastical History of the English People (
Historia Ecclesiastica Gentis Anglorum), which describes the "siege of Mount Badon, when they made no small slaughter of those invaders," as occurring 44 years after the first
Anglo-Saxon settlement of Britain. Bede refers to Ambrosius Aurelianus as the leader of the Britons at that battle, whose parents had perished 'in the storm' and who were 'of the royal race'. Since Bede places that arrival just before, during or just after the joint reign in Rome of
Marcian and
Valentinian III in AD 449456, he must have considered Badon to have taken place between 493 and 500. Bede then puts off discussion of the battle "But more of this hereafter" only to seemingly never return to it. Bede does later include an extended account of
Saint Germanus of Auxerre's victory over the Saxons and
Picts in a mountain valley (traditionally placed at
Mold in
Flintshire in northeast Wales), which he credits with curbing the threat of invasion for a generation. However, as the victory is described as having been accomplished bloodlessly, it was presumably a different occasion from Badon. Accepted at face value, Saint Germanus' involvement would also place the battle around AD 430, although Bede's chronology shows no knowledge of this.
Nennius and the Welsh Annals The earliest surviving text specifically mentioning Arthur in connection with the battle is the early 9th-century
Historia Brittonum (
The History of the Britons), attributed to the Welsh monk
Nennius, in which the soldier (Latin
mīles) Arthur is identified as the leader of the victorious British force at Badon: The Battle of Badon is next mentioned in the
Annales Cambriae (
Annals of Wales), Going into (and fabricating) much greater detail, Geoffrey closely identifies Badon with
Bath, including having
Merlin foretell that Badon's baths would lose their hot water and turn poisonous. He also mixes in aspects of other accounts: the battle begins as a Saxon siege and then becomes a normal engagement once Arthur's men arrive; Arthur bears the image of
the Virgin both on his shield and shoulder. Arthur charges and kills 470, ten more than the number of Britons ambushed by
Hengist near
Salisbury. Elements of the Welsh legends are added: in addition to the shield
Pridwen, Arthur gains his sword,
Caliburnus (Excalibur), and his spear,
Ron. Geoffrey also makes the defence of the city from the Saxon sneak attack a holy cause, having
Dubricius offer absolution of all sins for those who fall in battle. ==Scholarship==