8. This tradition, unknown to the contemporaries of Constantine, was invented in the darkness of monasteries, was embellished by Jeffrey of Monmouth and the writers of the twelfth century, has been defended by our antiquarians of the last age, and is seriously related in the ponderous History of England compiled by Mr. Carte (vol. i. p. 147). He transports, however, the kingdom of Coil, the imaginary father of Helena, from Essex to the wall of Antoninus.