Alfred records in the preamble to his will that Æthelwulf had left property jointly to three of his sons, Æthelbald, Æthelred and Alfred, with the proviso that the brother who lived longest would succeed to all of it. When Æthelbald died in 860, Æthelred and Alfred, who were still young, agreed to entrust their share to the new king, Æthelberht, on a promise that he would return it to them intact. When Æthelred succeeded to the throne, Alfred asked him at a meeting of the witan (assembly of leading men) to give him his share of the property. However, Æthelred said that he had attempted many times to divide it but had found it too difficult, and he would instead leave the whole to Alfred on his death. Some historians see the bequest as including the whole of Æthelwulf's bookland, his personal property which he could leave in his will (as opposed to the folkland which passed according to customary law and property earmarked for the support of the crown); it is further argued that it was considered desirable that the bookland would be kept by the king, so Æthelwulf's provision implies that the throne would pass to each brother in turn. However, other historians assert that the bequest had nothing to do with the kingship, and Alfred Smyth argues that the bequest was provision for Æthelwulf's young sons when they reached adulthood, with Æthelbald as trustee and residuary beneficiary if they died young. When Alfred succeeded, the supporters of Æthelred's infant sons complained that Alfred should have shared the property with them, and Alfred had his father's will read to a meeting of the witan to prove his right to keep the whole of the property. Alfred rarely witnessed Æthelred's charters, and this together with the argument over their father's will suggests that they were not on good terms. The historian Pauline Stafford suggests that Æthelred chose to highlight his wife's status as queen in a charter in order to assert his own sons' claims to the succession.