Praetorian Guard A 38 mm badge with a blue background and "Praetorian Guard". £1.25 Quantity: at £1.25 each Add To Basket 0 in your basket View Basket Checkout The Praetorian Guard were the personal bodyguards of the Roman emperors. They were also responsible for deposing and murdering quite a few emperors! Size: 38 mm. Colour: Dark blue.