The modern masonic order of Knights Templar is based on the historical events associated with two great military and religious Orders that existed at the time of the Crusades.
The full title of the Order represents the joining together of the two Orders, which at the time of their existence, while not enemies, were militant rivals. Those Orders are commonly referred to as Knights Templar (the Order of the Temple) and Knights Hospitaller (the Order of St John of Jerusalem, Palestine, Rhodes and Malta). No evidence exists of any connection between the great medieval Orders and the modern masonic Orders.
The Order is Christian in content, so only those professing the Christian faith are eligible to join. The ceremonies are dramatic, dignifed and impressive, drawing their themes from the celebrated chivalric Orders of the Knights of the Temple and the Knights of Malta.