The brief Roman occupation of pre-AngloSaxon England was minor but important to the development of British civilization and it comes with no surprise a portion of the English people descended from dispatched Roman soldiers or civilians.
Both Britain and continental Europe once was densely populated by Celtic peoples, but came the invading Germanic tribes while the other half of Celtic-speaking cultures fell under the Romans (Northern Italy, France esp. its south, Spain and Portugal).
My father came from France (the Nord PdC region) where it was entrenched with Romans, except the local population have roots in Flemish or Dutch ancestries from the tribes of Lower Germans or Nederlanders, esp. the northern half of Nord departement and an adjacent part of Pas-de-Calais was Flemish-speaking instead of French until the 18th and early 19th centuries.
The English were there in and around Calais and Dunkerque (or Dunkirk) for a short time, then came the Spaniards and Austrians, and finally in the mid 17th century the final French annexation of the very lands the kings of France claimed to be French land, despite a minority (or in certain spots, majorities) of Flemings are already present.
Every nation in the world are descended from a variety of tribes, nations and peoples whom invaded, occupied, and came to settle in the very lands to blend in with the native or indigenous populations over periods of time. The British people can have 1st century BC Pictish ancestors as well have Roman genes in them.
Edited by Mike D boy, 24 February 2013 - 11:36 AM.