 William II of England (William "Rufus") recognised that the state of affairs, as left to him by William I in 1087, was only a holding solution to the problems of the unsatisfactory position of the Normans above the Humber in the East and above the Ribble to the West.In 1092, Rufus took over Cumberland by expelling the local lord, Dolfin, (who may or may not have been related to Earl Cospatrick).Then, he built the castle at Carlisle and garrisoned it with his own men, and sent peasants, possibly from Ivo Taillebois' Lincolnshire lands, to cultivate the land there.