The baronial family of Bagot descended from the Carlovingian Counts of Artois, and Bagod d' Arras is the one who is claimed to have built Saint-Omer Castle in Flanders, according to the FamilyCastles site. Apparently the FamilyCastles site owners have not yet gotten to Saint-Omer in Arras, France during rebuilding. They have Castle Saint-Omer on the site at present in Arras, France without a link, but their link has said earlier it was occupied by Bagod de Arras and Carlovingian Counts. Obviously both the castle in France called Castle Saint-Omer and the castle in Belgium called Saint-Omer Castle are the same. Both are in the same region in the ancient country of Flanders. All the above is highly conjectural until more documentation is found to prove its accuracy.

Bagod de Arras was one of the Principle Knights in William the Conquerer’s Army with his Shield displayed on the Roll of Battle Abbey, and presumably he was granted Lord of Bromley in Stafford by William because of their triumph during the Battle of Hastings. These Principle Knights were the ones who received the Lordships. Lord William Bagot in his book of 1824 states the first record he had in England on Bagot, was Bagod, Lord of a Moiety of Bramelee (Bromley) at the time of William the Conquerer. De Arras was back in Artois in 1075 and witnessed a charter in Flanders after the Conquest in 1066. He traveled back to Flanders apparently to settle some affairs or perhaps he had to attend to the business part of his share of the estate of his father, Robert, Sire de Bethune of Artois, who had died in 1075.