The Royal Engineers trace their origins back to the military engineers brought to England by William the Conqueror , specifically Bishop Gundulf of Rochester Cathedral .
The Royal Engineers claim over 900 years of unbroken service to the crown .
The Royal Engineers trace their origins back to the military engineers brought to England by William the Conqueror , specifically Bishop Gundulf of Rochester Cathedral , and claim over 900 years of unbroken service to the crown .