Knights of the Crimson Seal begins in medieval Europe and then jumps forward to modern-day.

You can find this story on Amazon here:
http://www.amazon.co.uk/gp/product/B0...

The Goodreads listing is here:
https://www.goodreads.com/book/show/2...

The image board for this story is here:
http://gtvlondon.blogspot.co.uk/2014/...