The work itself is anonymous, the manuscripts stating only that it was composed in the time of Henry II., “Glanville then holding the helm of justice.” Early tradition, however, asserts that it was written by Glanville himself, and that fact was accepted as undoubted from the thirteenth to the nineteenth century. Modern scholars have expressed doubt of it. Littleton’s objection (in his “Life of Henry II.”) that Glanville could not have written the book because he was not in orders, may be dismissed at once. The greater officers of the administration, whether in orders or not, must have had sufficient Latin to dictate a Latin treatise to a clerk, and Glanville was particularly commended for his eloquence by more than one contemporary. Hunter’s objection (in the preface to his “Fines”) is that Glanville, at the time the treatise was written, was too busy in public affairs to have composed such a work, and he suggests that the author may have been William de Glanville, a justice in the next reign; who was, in fact, Glanville’s son, and (from 1186) his secretary. But this is the merest guess. Professor Maitland conjectures (for a rather fanciful reason, perhaps) that the author may have been Hubert Walter. Liebermann, on the other hand, defends Glanville’s authorship. Certainly there is little external proof that Glanville was the author of the treatise, though it must have been written by some one in high position and repute to have obtained so immediate a success. The internal evidence does not lead us much further. The style is that of a person speaking with authority, but not necessarily the authority of the Chief Justiciar himself. The claim of Hubert Walter to the authorship cannot be dismissed without further examination. Hubert was a nephew of Glanville’s wife; according to one account, of Glanville himself, Glanville’s younger brother having married his wife’s sister. Whether Hervey Walter, Hubert’s father, was really, as this account has it, Hervey de Glanville or not, it is certain that Hubert was brought up in intimacy with Glanville’s family, became his secretary, and was regarded by him as a valued counsellor. He was made Dean of York in 1186, being succeeded as secretary by Glanville’s son William. He soon became Bishop of Salisbury, Archbishop of Canterbury, and later Chief Justiciar and Chancellor of the Kingdom. He is described as a man of foresight and wisdom; it is said of him that his heart was in human affairs rather than divine, and that he knew all the laws of the kingdom. He was, however, a man “of little eloquence;” indeed, one chronicler ridicules his Latin style. Did Glanville write the whole treatise? or did Hubert Walter write it? Or did they collaborate on it? Perhaps we can reach a conjectural conclusion by a more careful examination of the treatise itself.