Here is a link to the relic known as "The Holy Lance of Longinus!" Returned by the Crusaders it was "owned" by the Holy Roman Emporers of Austro-Hungaria until "taken" by Hitler. Enjoy the read
IIRC, the relic got a documentary (or part of one) on The Discovery Channel. Hitler may have just about been "the devil incarnate", but he sure did go for those Christian legends and imagery.