Andhun was an Ealdorman of Sussex under King Æðelwealh, who was slain by the Wessex prince Cædwalla, who invaded and ravaged Sussex. Berhthun and Andhun succeeded in driving Caedwalla from the Kingdom.
In 686, the South Saxons attacked Hlothhere, King of Kent, in support of his nephew Eadric, but soon after Berhthun was killed and the kingdom subjugated for a time by Caedwalla, who had now become King of Wessex.
- Mike Ashley (7 June 2012). The Mammoth Book of British Kings and Queens. Little, Brown Book Group. p. 238. ISBN 978-1-4721-0113-6.
- John Cannon; John Ashton Cannon; Anne Hargreaves (2009). The Kings & Queens of Britain. Oxford University Press. p. 24. ISBN 978-0-19-955922-0. Retrieved 6 June 2017.
- Timothy Venning (30 January 2014). The Kings & Queens of Anglo-Saxon England. Amberley Publishing Limited. p. 61. ISBN 978-1-4456-2459-4. Retrieved 6 June 2017.