Note 51 — Chapter I · THE MINORITY OF DUKE WILLIAM AND ITS RESULTS
Reading edition
Ordericus Vitalis (iii., 342) makes a pointed reference to the length of time occupied by the present siege in comparison with the capture of Brionne in a single day by Robert of Normandy in 1090. But it is impossible to accept his statement that the resistance of Guy of Burgundy was protracted for three years.