Who was the first knight in the movie Braveheart?

In the movie "Braveheart," the character Sir William Wallace, played by Mel Gibson, is often regarded as the central heroic figure rather than a traditional knight. While he is not officially knighted in the film, he embodies the spirit of a knight through his bravery and leadership in the fight for Scottish independence against English rule. The character of Sir Robert the Bruce, who later becomes a key figure in the Scottish struggle, also plays a significant role in the narrative.