Charles the Bald and Aethelwulf of Wessex: the alliance of 856 and strategies of royal succession

Scholars have usually supposed that the marriage of King Aethelwulf of Wessex to the daughter of Charles the Bald in 856 signified the creation of an anti-Danish alliance between the two rulers. That this union signified a royal accord is not in doubt but there is no evidence to associate it with any venture against Danes. Though the evidence is not conclusive it appears more probable that Aethelwulf's marriage to Princess Judith was part of a scheme to prevent or to undermine a rebellion in England then being fomented by Aethelwulf's son Aethelbald who desired his father's throne. For his part Charles the Bald aimed at gaining influence in England. At the time of her marriage Judith was crowned and anointed and this was a rare occurrence. When analyzed in the proper light it suggests the existence of a compact by the terms of which Aethelwulf would disinherit Aethelbald at some future date should Judith bear a son. The marriage, then, did not signify an alliance against Danes. Rather it denoted an alliance against Aethelwulf's son Aethelbald.