30% of White British DNA Has German Ancestry

The Romans, Vikings and Normans may have ruled or invaded the British for hundreds of years, but they left barely a trace on our DNA, the first detailed study of the genetics of British people has revealed. The analysis shows that the Anglo-Saxons were the only conquering force, around 400-500 AD, to substantially alter the country’s genetic makeup, with most white British people now owing almost 30% of their DNA to the ancestors of modern-day Germans.

The Welsh also showed striking differences to the rest of Britain, and scientists concluded that their DNA most closely resembles that of the earliest hunter-gatherers to have arrived when Britain became habitable again after the Ice Age.