^Fryde, et al. Handbook of British Chronology p. 223
References
Fryde, E. B.; Greenway, D. E.; Porter, S.; Roy, I. (1996). Handbook of British Chronology (Third revised ed.). Cambridge: Cambridge University Press. ISBN0-521-56350-X.
Foot, Sarah (2011). "The Bishops of Selsey and the Creation of a Diocese for Sussex". In Foster, Paul; Moriarty (eds.). Chichester: The Palace and it's Bishops. Otter Memorial Papers. Vol. 27. Chichester: University of Chichester. ISBN978-1-907852-03-9.