Answer:
It should come as no surprise that a cross is one of the symbols of a religious order of Christian warrior monks. This cross, mainly red, represented the knights’ connection to the Church as well as their mission. You would find the cross emblazoned upon the mantle. This symbol was not an ornament until 1147 when Pope Eugenius III approved of it. For the Crusader, the red cross represented martyrdom and reminded them of the sacrifice of Christ