Historicity of King Arthur in the mid-10th century and gives the date of Badon as 516, and it lists Arthur's death as occurring in 537 at the Battle of Camlann. The annals survive in a version dating from the 10th century, and all other sources that name Arthur were written at least 400 years after the events which they describe. Arthur was first styled as a king of the Britons in Geoffrey of Monmouth's chronicle "Historia Regum Britanniae" (c. 1136). Geoffrey also makes Ambrosius Aurelianus (whom he calls Aurelius Ambrosius) a king of Britain and an older brother of Uther Pendragon, father of Arthur,
The Last Sleep of Arthur in Avalon was completed when Morris was in vigorous health. Morris died in 1896; Burne-Jones lived for two more years and died before the painting was complete. Just one day before his death Burne-Jones continued work on "Arthur". Towards the end of his life he wrote, "I need nothing but my hands and my brain to fashion myself a world to live in that nothing can disturb. In my own land I am king of it." His widow described "Arthur" as a "task of love to which [the artist] put no limit of time or labor." Following the artist's death, the painting