This is a list of some members of the Knights Templar, a powerful Christian military order during the time of the Crusades. At peak, the Order had approximately 20,000 members. The Knights Templar were led by the Grand Master, originally based in Jerusalem, whose deputy was the Seneschal. Next in importance was the Marshal, who was responsible for individual commanders, horses, arms and equipment. He usually carried the standard or nominated a standard-bearer. The Commander of the Kingdom of Jerusalem was the treasurer and shared some authority with the Grand Master, balancing his power. Other cities also had Commanders with specific regional responsibilities.