At some point Ceawlin ceased to hold the title of bretwalda, perhaps after a battle at Stoke Lyne, in Oxfordshire, which the Chronicle dates to 584, some eight years before he was deposed in 592 (again using the Chronicle's unreliable dating).
Nalgún momento Ceawlin deixou de ter o título de bretwalda, quizais após unha batalla en Stoke Lyne, en Oxfordshire, que a Crónica data en 584, uns oito anos antes de que casara en 592 (outra vez segundo a non fiable datación da Crónica).