It could very well be that there ARE tunnels under Hertford and that they DO belong to the Knights Templar. It's almost funny how they manage to weasle their way into every legend and story possible! LOL!! However, I have my doubts about the KT possessing the Holy Grail. The KT were charged with so many WRONG things. If nothing more, they were monks who FOUGHT. Jesus never commanded his followers to fight. In fact, He told them quite the opposite! It would seem ironic for the KT to guard the sacred cup. Also, after their demise they are said to have founded either the Masons or the Illuminati. Both groups are very antichrist to say the least. Take a look at the way a Masonic building is constructed. The mix in demons with supposed Christian statues. It's a conspiracy!! The Masons are out to illiminate Christians around the world. Not mix with them. And if the Knights Templar were the forefathers of the Masons, I strongly disbelieve that they'd guard the cup of Jesus Christ.