pennoncelle

This arming took place in the great courtyard, at least as far as the gallant prisoner was disarmed, and when Bayard was fully accoutred he sprang on his horse without touching the stirrup, and asked for his lance, which was given him -- a steel-headed weapon about fourteen feet long, the shaft being of ash or sycamore with a little flag (pennoncelle) waving at the top.

Bayard: the Good Knight Without Fear and Without Reproach Christopher Hare