1. The black and white standard or war banner of the order of the knights templar, signifying death unto foes and fairness to friends and allies
2. The war cry of the knights templar

It's exact meaning has been lost in through the times but most likely it comes from médieval french and has a meaning similar to "Be noble" or "Glory unto the Lord".

Knights Templar Medieval War cry
The black and white banner at their front, the knights templar charged into the enemy .
Their war cry "Beauseant", let it be known: they would leave the field of battle victorious, or dead.
by The Malicious One March 29, 2016
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