The Oriflamme Vikings season 3 episode 8 Princess Gisla on the walls of Paris

Princess Gisla of Paris rallies the men on the walls using the Oriflamme. From Wikipedia : The Oriflamme (from Latin aurea flamma, golden flame ) was the battle standard of the King of France in the Middle Ages. It was originally the sacred banner of the Abbey of St. Denis, a monastery near Paris. When the oriflamme was raised in battle by the French royalty during the Middle Ages, most notably during the Hundred Years War, no prisoners were to be taken until it was lowered. This tactic hoped to strike fear into the hearts of the enemy, especially the nobles, who could usually expect to be taken alive for ransom during such military encounters.