Thus, in 1113 the Brut-y-Tywysogion mentions his name as ally of the Norman knights in their struggle to maintain their ground in, and around, Carmarthen.  In 1125 we find his name as donor of lands to the Augustinian Church of St John the Evangelist, and St Theuloc of Carmarthen, newly founded by Henry I. Here his name appears with the significant title Latinarius (The Interpreter), a qualification repeated in subsequent charters of the same collection.  In one of these we find Griffith, the son of Bledri, confirming his father’s gift.  Professor Lloyd, in an article in Archaeologia Cambrensis, July 1907, has examined these charters, and considers the grant to have been made between 1129 and 1134, the charter itself being of the reign of Henry I, 1101-1135.[12]

In the Pipe Roll of Henry I, 1131, Bledri’s name is entered as debtor for a fine incurred by the killing of a Fleming by his men; while a highly significant entry records the fine of 7 marks imposed upon a certain Bleddyn of Mabedrud and his brothers for outraging Bledri’s daughter.  When we take into consideration the rank of Bledri, this insult to his family by a fellow Welshman would seem to indicate that his relations with his compatriots were not of a specially friendly character.

Mr Owen also points out that portion of the Brut-y-Tywysogion which covers the years 1101-20 (especially the events of the year 1113, where we find Bledri, and other friendly Welsh nobles, holding the castle of Carmarthen for the Normans against the Welsh), is related at an altogether disproportionate length, and displays a strong bias in favour of the invaders.  The year just referred to, for instance, occupies more than twice the space assigned to any other year.  Mr Owen suggests that here Bledri himself may well have been the chronicler; a hypothesis which, if he really be the author we are seeking, is quite admissible.

So far as indications of date are concerned, Bledri probably lived between the years 1070-1150.  His father Cadivor died in 1089, and his lands were divided between his sons of whom Bledri, as we have seen, was the eldest.  Thus they cannot have been children at that date; Bledri, at least, would have been born before 1080.  From the evidence of the Pipe Roll we know that he was living in 1131.  The charter signed by his son, confirmatory of his grant, must have been subsequent to 1148, as it was executed during the Episcopate of David, Bishop of St David’s 1148-1176.  Thus the period of 80 years suggested above (1070-1150) may be taken as covering the extreme limit to be assigned to his life, and activity.

The passage in which Giraldus Cambrensis refers to Bledhericus, famosus ille fabulator who tempora nostra paulo praevenit, was written about 1194; thus it might well refer to a man who had died some 40 or 50 years previously.  As we have noted above, Giraldus was born upon ground forming a part of Bledri’s ancestral heritage, and thus might well be familiar with his fame.