In 1133, Roger of Salisbury secured the bishopric of Ely for Nigel. Ely had been without a bishop since 1131; after the two-year vacancy, King Henry made the appointment because he was settling outstanding business before leaving England to return to Normandy. At this time Henry also appointed Geoffrey Rufus to Durham, and Æthelwold to the newly created Diocese of Carlisle. Nigel was consecrated on 1 October 1133 at Lambeth by William de Corbeil—who was by then Archbishop of Canterbury—possibly with the assistance of Roger of Salisbury. 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.