When was the order to which Bertrand de Blanchefort was the sixth Grand Master founded? 
Bertrand de Blanchefort: Bertrand de Blanchefort (or Blanquefort) was the sixth Grand Master of the Knights Templar, from 1156 until his death in 1169. Knights Templar:  The order was founded in 1119 and active from about 1129 to 1312.
1119