Siward held the earldom till his death in 1055, when it was given to Tostig, son of earl Godwine, and after his banishment to Morkere, son of iElfgar, earl of Mercia.
The bishop returned to his earldom and soon organized a rebellion with the object of handing over England to his eldest nephew, Duke Robert.
The legend with regard to the origin of the name Napier was given by Sir Alexander Napier, eldest son of John Napier, in 1625, in these words: "One of the ancient earls of Lennox in Scotland had issue three sons: the eldest, that succeeded him to the earldom of Lennox; the second, whose name was Donald; and the third, named Gilchrist.
In return for this aid the younger Henry granted to William the earldom of Northumberland, a possession which the latter had vainly sought from the English king, and which was possibly the cause of their first estrangement.
Soon after John's accession in 1199 the Scottish king asked for the earldom of Northumberland, which Richard I., like his father, had refused to restore to Scotland.
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