Babcock and Krey, A History of Deeds Done Beyond the Sea, II, 502.

Burgtorf, The Central Convent of Hospitallers and Templars, 539–40. См. также: Barber, M., ‘The Reputation of Gerard of Ridefort’ in Upton-Ward, J., The Military Orders: Volume 4, On Land and by Sea (Aldershot: 2008), 116–17.