Just one Fleming is mentioned as present at the Battle at Hastings, Eustace of Boulogne. By 1086 a further 15 with their serfs had been imported to replace the butchered population in England and occupied a few hundred empty settlements.
The Norman conquest of Wales was postponed until 1093 and after the destruction of the Welsh tribes Flemings were again shipped in to replace the slaughtered indigenous population.
On the Flemings
‘The inhabitants of this province derived their origin from Flanders, and were sent by King Henry I to inhabit these districts; a people brave and robust, ever most hostile to the Welsh; a people, I say, well versed in commerce and woollen manufactories; a people anxious to seek gain by sea or land, in defiance of fatigue and danger; a hardy race, equally fitted for the plough or the sword; a people brave and happy’. Geraldus Cambrensis, Itinerary Through Wales, 1188