The Archer's Tale - Bernard Cornwell

A brutal raid on the quiet coastal English village of Hookton in 1342 leaves but one survivor: a young archer named Thomas. On this terrible dawn, his purpose becomes clear -- to recover a stolen sacred relic and pursue to the ends of the earth the murderous black-clad knight bearing a blue-and-yellow standard, a journey that leads him to the courageous rescue of a beautiful French woman, and sets him on his ultimate quest: the search for the Holy Grail.

 

I decided to hold off from reading The Heretic and have found book #1 in the series.