The history of the construction of Kenilworth is written with tolerable clearness in its earthworks and walls. The English founder probably placed his residence upon what became the inner ward; he there fenced himself in, as was the manner of his nation, with banks and ditches, and walls either of dry stone or timber, taking the highest ground, and quartering his herds and herdsmen lower down, nearer to the meadows and the marshes in what is now the outer ward. Whether he found it necessary to cut the northern ditch to its full depth is uncertain; probably not, for its faces are sharp for so remote a period. Some ditch, however, there must have been, as without it the other works would be of little use. It may be also that there was then dug an inner ditch upon the north and east faces, as these were necessary to complete the security of the inner ward, and of one at least of them there are traces. There is no mention of Kenilworth as a lordship until it was granted by Henry I. to Geoffrey de Clinton, who is the reputed founder of Clinton’s Tower or the keep; but this is more probably the work of his son, another Geoffrey, between 1170 and 1180, soon after which the estate fell to the Crown. Lunn’s Tower was probably the work of King John, about 1200; and the original curtain of the two wards seems to have ranged between the two dates. If the northern ditch of the outer work was not previously dug, it must have been dug, or at any rate deepened, at this period; and this applies also to the northern and eastern ditches, which seem to have covered the corresponding faces of the inner ward. The character of the ground makes it probable that the Norman fortress had but one entrance. This could not have been on the east, west, or south fronts, as the ground was low and marshy; nor on the north, where the ditch is wide and deep, and on which side the inner ward had no corresponding gateway. The obvious position would be where is now Leicester’s Gatehouse, between the high ground of Clinton Green and the marsh land, and the way from which towards the gateway of the inner ward would be commanded by the keep.