In the disorderly state of England under the Plantagenets, who governed it from about the middle of the twelfth till towards the end of the fifteenth century, one district might be in plenty, while another, at no great distance, by having its crop destroyed, either by some accident of the seasons, or by the incursion of some neighbouring baron, might be suffering all the horrors of a famine; and yet if the lands of some hostile lord were interposed between them, the one might not be able to give the least assistance to the other.