Upon the death of King Cuthred of Wessex around the year 756, the throne passed to Sigebert, a distant member of the royal family. As the new king was not a direct descendant of his predecessor, he was vulnerable to court intrigue. Unluckily for him, another distant kinsman of the late King Cuthred had his own ambitions for the crown, and the prospective usurper waited only a year to strike. In the end, corruption was Sigebert’s undoing—either his own corruption, or the corrupting influence of his rival. Sometime during the year 757, the officials of Wessex abruptly turned against Sigebert. The witan, a high advisor of the king, charged Sigebert with allegations of unrighteousness and corrupt behavior. A man named Cynewulf then claimed the throne, with the witan’s support, and his first order of action was to chase his rival into a forest, where the unfortunate King Sigebert was murdered.
King Cynewulf went on to rule for multiple decades. By Anglo-Saxon standards, he was a decent king. As a warrior, Cynewulf fought bravely and, as a Christian monarch, the monk-historians of medieval Britain seemed to have no complaint with the way he dealt with the church. The biggest blemish on Cynewulf’s rule was the battle he lost to King Offa of Mercia, the high king (or Bretwalda) of the time, at Bensington in 779. Overall, however, Cynewulf kept the strength of Wessex largely intact during his reign. Nevertheless, despite his successes, the death of his predecessor, Sigebert, would haunt Cynewulf to the end.