Diana E. Greenway: Archdeacons: without territorial titleFasti Ecclesiae Anglicanae 1066-1300: volume 4: Salisbury. Institute of Historical Research. Arkistoitu 14.2.2012. Viitattu 25.12.2011. (englanniksi)
Diana E. Greenway: BishopsFasti Ecclesiae Anglicanae 1066-1300: volume 3: Lincoln. Institute of Historical Research. Arkistoitu 9.8.2011. Viitattu 25.12.2011. (englanniksi)
oxforddnb.com
AlexanderOxford Dictionary of National Biography. Oxford University Press. Viitattu 25.12.2011. (englanniksi)
web.archive.org
Diana E. Greenway: Archdeacons: without territorial titleFasti Ecclesiae Anglicanae 1066-1300: volume 4: Salisbury. Institute of Historical Research. Arkistoitu 14.2.2012. Viitattu 25.12.2011. (englanniksi)
Diana E. Greenway: BishopsFasti Ecclesiae Anglicanae 1066-1300: volume 3: Lincoln. Institute of Historical Research. Arkistoitu 9.8.2011. Viitattu 25.12.2011. (englanniksi)