archbishop of Canterbury. Of Kentish origin, he became a monk, later abbot, of St Augustine's, Canterbury. Consecrated in 765, he ruled his see at a time when Offa, king of Mercia, had reduced the status of Kent to that of a dependent sub-kingdom. Partly through a quarrel with Jambert, Offa asked and obtained from the pope that Lichfield should become a metropolitan see: this meant that Jambert lost about half his province. During his successor's tenure of office the pope restored the status quo ante, which Canterbury never lost again. Possibly Jambert was regarded as a saint for his stand in the matter. His feast on 12 August is testified by a calendar of St Augustine's, Canterbury, where he was buried.
F. M. Stenton, Anglo-Saxon England, pp. 205–17; E.B.K. after 1100, i. 47–62.