Well, they used archers of course, but not longbowmen until the 14th century (as explain above) to the 16th century. The Franc archers, according to Viollet le Duc started during the 14th century.
Here, some late 14th century miniatures of French (and Britany) archers:
Oh, and a very nice miniature of French knights late 13th century
Spoiler Alert, click show to read:
And an interesting way to display a flag
I should rather give you the link, you can search for many european countries, here I put France: