Aha ! These are the Tocharians, which I believe are linked to the Alans.. which eventually worked their way into Brittany, I believe. My DNA is so rare, it is said that I may never get a match. However, my 4 most rare markers are matched by a person in Taiwan, who claims to be of the Chinese Han dynasty. My DNA is most definitely Celtic though, and perhaps pre Roman Briton. I have spoken to Professor Mair ( the expert on Tocharian dna) and I suggested to him that IF Tocharian DNA were ever extracted ( Y) which is doubtful at this point, there would be a good chance that that I MIGHT get a match. He agreed. Proffessor Mair is nearby at Temple University in Philadelphia. Great fun. I would certainly not go around saying that I am Tocharian.. .but I do have a close match that an expert on dna says would be a direct descendant from the 5th century IF that person got a further 37 marker test. That person traces from Brittany. Aside from the Tocharian hint, it would appear that both our ancestors left Britain in the 5th century on the invasion of the Anglo Saxons while my ancestors returned to Britain ( not yet England) under Duke William, as part of his Celtic Brigades. However, there are many possibilities here. Especially since the Alans went to Brittany... were my ancestors in Britain BEFORE the invasion ? This DNA stuff is really fascinating. Richard Clarkson