Hi Shawn. Interesting story. I think that you should read Dr. VanSertima. He has at least two books about Blacks in Europe. Not sure if they are still in print, but I'm sure a local library or better yet a college library with his writings.
Through the various crests, you'll find that there were black Irish and black English too. Happy hunting!
Also, if I were you I would go to African Ancestry.com, you may get a more specific hit. They have the largest African DNA collection in comparison to other companies and specifically do African DNA matches.