 Nigel continued to hold the office of treasurer until 1136, when he was replaced by a relative, Adelelm, although the historian C. Warren Hollister placed his departure from the office in 1133 with his appointment to Ely.The "Constitutio domus regis", or "Establishment of the King's Household", may have been written by Nigel, or possibly for his use, and probably was composed around 1135.Ely had until 1109 been an independent monastery, but its last abbot, Richard, had proposed to the king a plan by which the abbey would become a bishopric, presumably with the abbot himself as bishop.