I found an entire collection of Knights Templar music on YouTube.
Sir Kenneth Glover
Ordre Militaire Suprême Des Templiers (OMSDT)
Marshal, Priory of St. Luke
Esto Benignus et Humilis
The Cistercians were initially Benedictines, which would explain why the Templars lived by the Latin Rule, which was part of the 72 Rules created by St. Benedict.
GC John Kelmy
KCP, Priory of St. Michael the Archangel
KCP Bobby Lawson
Priory of the Holy Trinity
God Above All