Since he also mentions that he was an eyewitness of some events from the reign of Duke Richard III (1026-7), it seems reasonable to assume that he was born some time about the year 1000.
"Dat fiind că el precizează că a fost un martor ocular al unor evenimente din vremea ducelui Richard al III-lea de Normandia (1026-1027), pare de acceptat să se afirme că el se născuse în jurul anului 1000.