Northumbria
Eadberht appears to have faced opposition from rival families throughout his reign. Eardwine, probably the son of King Eadwulf, and grandfather of the future king Eardwulf, was killed in 740. In 750 Offa, son of King Aldfrith was taken from the sanctuary of Lindisfarne and put to death after a siege, while Bishop Cynewulf of Lindisfarne, who had presumably supported Offa, was dethroned and detained in York. The importance of religious foundations in Northumbrian politic struggles and family feuds is apparent. Eardwine's family is associated with Ripon, Offa and Ceolwulf with Lindisfarne, and Hexham appears to have supported kings and noblemen opposed by the Lindisfarne community. Eadberht, however, as brother of the Archbishop of York, enjoyed the support of the greatest Northumbrian prelate.
Eadberht's reign saw major reforms to the Northumbrian coinage, and some coins name King Eadberht and Archbishop Ecgberht. Kirby concludes that "the indications are that Eadberht was bringing new prosperity to his kingdom." A letter sent by Pope Paul I to Eadberht and Ecgberht, ordering them to return lands taken from Abbot Fothred, and given to his brother Moll, presumed to be the same person as the later king Æthelwald Moll, suggests that Eadberht's reign saw attempts at reclaiming some of the vast lands which had been gifted to the church in earlier reigns.
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