Mul (died 687) may have briefly ruled as King of Kent following its conquest by his brother, Caedwalla of Wessex, in 686.
The Anglo-Saxon Chronicle tells us that, in 686, "Caedwalla and Mul, his brother, ravaged Kent and Wight." In 687, however, it reports that "Mul was burned in Kent, and 12 other men with him; and that year Caedwalla again ravaged Kent."
The Kingdom of Kent was a kingdom of Jutes in southeast England, one of the seven traditional kingdoms of the so-called Anglo-Saxon heptarchy.
There is evidence to suggest that Kent and its boundaries relate to this British canton because it was handed over in entirety to King Hengist by treaty during the middle of the 5th century.
Kent seems to have had its greatest power under Æthelbert at the beginning of the 7th century: Ethelbert was recognized as Bretwalda until his death in 616, and was the first Anglo-Saxon king to accept Christianity, as well as the first to introduce a written code of laws.