Bertrand de Blanchefort was the sixth Grand Master of the Knights Templar, from 1156 until his death in 1169. He is known as a great reformer of the order.

Blanchefort petitioned the Pope to use the title, "Master by Grace of God", which fitted the Templar's position as rising stars in the church, a favor which Rome gladly granted. His internal reforms were more important however. He wrote the "Retraits", which established structure within the order. This meant knights had clearer roles and protocols. He also established checks within the leaderships of the order, which stopped future Grand Masters deciding the direction of the Templars, without the backing of the knights. His work on creating negotiating roles within the order is also worth noting. After the failed expedition to Egypt, it was the Templars that helped draw up a peace treaty.