Angold, M J; Baugh, G C; Chibnall, Marjorie M; Cox, D C; Price, Rev D T W; Tomlinson, Margaret; Trinder, B S (1973). Gaydon, A T; Pugh, R B (eds.). "Houses of Benedictine monks: Priory of Bromfield". A History of the County of Shropshire: Volume 2. pp. 27–29. Retrieved 27 September 2018.
deremilitari.org
McGurk, Patrick, ed. (1998). "Siege of Worcester in 1139". The Chronicle of John of Worcester. Oxford: Oxford University Press.
