If we come to constitutional precedents, by which, when sufficiently numerous and unexceptionable, all questions of this kind are ultimately to be determined, the weight of ancient authority seems to be in favour of the prelates. In the fifteenth year of Edward III. (1340), the king brought several charges against archbishop Stratford. He came to parliament with a declared intention of defending himself before his peers. The king insisted upon his answering in the court of exchequer. Stratford however persevered, and the house of lords, by the king's consent, appointed twelve of their number, bishops, earls, and barons, to report whether peers ought to answer criminal charges in parliament, and not elsewhere. This committee reported to the king in full parliament that the peers of the land ought not to be arraigned, nor put on trial, except in parliament and by their peers. The archbishop upon this prayed the king, that, inasmuch as he had been notoriously defamed, he might be arraigned in full parliament before the peers, and there make answer; which request the king granted. (Rot. Parl. vol. ii. p. 127. Collier's Eccles. Hist. vol. i. p. 543.) The proceedings against Stratford went no further; but I think it impossible not to admit that his right to trial as a peer was fully recognised both by the king and lords.
This is, however, the latest, and perhaps the only instance of a prelate's obtaining so high a privilege. In the preceding reign of Edward II., if we can rely on the account of Walsingham (p. 119), Adam Orleton, the factious bishop of Hereford, had first been arraigned before the house of lords, and subsequently convicted by a common jury; but the transaction was of a singular nature, and the king might probably be influenced by the difficulty of obtaining a conviction from the temporal peers, of whom many were disaffected to him, in a case where privilege of clergy was vehemently claimed. But about 1357 a bishop of Ely, being accused of harbouring one guilty of murder, though he demanded a trial by the peers, was compelled to abide the verdict of a jury. (Collier, p. 557.) In the 31st of Edw. III. (1358) the abbot of Missenden was hanged for coining. (2 Inst. p. 635.) The abbot of this monastery appears from Dugdale to have been summoned by writ in the 49th of Henry III. If he actually held by barony, I do not perceive any strong distinction between his case and that of a bishop. The leading precedent, however, and that upon which lawyers principally found their denial of this privilege to the bishops, is the case of Fisher, who was certainly tried before an ordinary jury; nor am I aware that any remonstrance was made by himself, or complaint by his friends, upon this ground. Cranmer was treated in the same manner; and from these two, being the most recent precedents, though neither of them in the best of times, the great plurality of law-books have drawn a conclusion that bishops are not entitled to trial by the temporal peers. Nor can there be much doubt that, whenever the occasion shall occur, this will be the decision of the house of lords.
There are two peculiarities, as it may naturally appear, in the above-mentioned resolution of the lords in Stratford's case. The first is, that they claim to be tried, not only before their peers, but in parliament. And in the case of the bishop of Ely it is said to have been objected to his claim of trial by his peers, that parliament was not then sitting. (Collier, ubi sup.) It is most probable, therefore, that the court of the lord high steward, for the special purpose of trying a peer, was of more recent institution—as appears also from Sir E. Coke's expressions. (4 Inst. p. 58.) The second circumstance that may strike a reader is, that the lords assert their privilege in all criminal cases, not distinguishing misdemeanors from treasons and felonies. But in this they were undoubtedly warranted by the clear language of Magna Charta, which makes no distinction of the kind. The practice of trying a peer for misdemeanors by a jury of commoners, concerning the origin of which I can say nothing, is one of those anomalies which too often render our laws capricious and unreasonable in the eyes of impartial men.
Since writing the above note I have read Stillingfleet's treatise on the judicial power of the bishops in capital cases—a right which, though now, I think, abrogated by non-claim and a course of contrary precedents, he proves beyond dispute to have existed by the common law and constitutions of Clarendon, to have been occasionally exercised, and to have been only suspended by their voluntary act. In the course of this argument he treats of the peerage of the bishops, and produces abundant evidence from the records of parliament that they were styled peers, for which, though convinced from general recollection, I had not leisure or disposition to search. But if any doubt should remain, the statute 25 E. III. c. 6, contains a legislative declaration of the peerage of bishops. The whole subject is discussed with much perspicuity and force by Stillingfleet, who seems however not to press very greatly the right of trial by peers, aware no doubt of the weight of opposite precedents. (Stillingfleet's Works, vol. iii. p. 820.) In one distinction, that the bishops vote in their judicial functions as barons, but in legislation as magnates, which Warburton has brought forward as his own in the Alliance of Church and State, Stillingfleet has perhaps not taken the strongest ground, nor sufficiently accounted for their right of sitting in judgment on the impeachment of a commoner. Parliamentary impeachment, upon charges of high public crimes, seems to be the exercise of a right inherent in the great council of the nation, some traces of which appear even before the Conquest (Chron. Sax. p. 164, 169), independent of and superseding that of trial by peers, which, if the 29th section of Magna Charta be strictly construed, is only required upon indictments at the king's suit. And this consideration is of great weight in the question, still unsettled, whether a commoner can be tried by the lords upon an impeachment for treason.
The treatise of Stillingfleet was written on occasion of the objection raised by the commons to the bishops voting on the question of Lord Danby's pardon, which he pleaded in bar of his impeachment. Burnet seems to suppose that their right to final judgment had never been defended, and confounds judgment with sentence. Mr. Hargrave, strange to say, has made a much greater blunder, and imagined that the question related to their right of voting on a bill of attainder, which no one, I believe, ever disputed. (Notes on Co. Litt. 134 b.)
The constitution of parliament in this period, antecedent to the Great Charter, has been minutely and scrupulously investigated by the Lords' Committee on the Dignity of a Peer in 1819. Two questions may be raised as to the lay portion of the great council of the nation from the Conquest to the reign of John:—first, Did it comprise any members, whether from the counties or boroughs, not holding themselves, nor deputed by others holding in chief of the crown by knight-service or grand serjeanty? secondly, Were all such tenants in capite personally, or in contemplation of law, assisting, by advice and suffrage, in councils held for the purpose of laying on burthens, or for permanent and important legislation?
The former of these questions they readily determine. The committee have discovered no proof, nor any likelihood from analogy, that the great council, in these Norman reigns, was composed of any who did not hold in chief of the crown by a military tenure, or one in grand serjeanty; and they exclude, not only tenants in petty serjeanty and socage, but such as held of an escheated barony, or, as it was called, de honore.
They found more difficulty in the second question. It has generally been concluded, and I may have taken it for granted in my text, that all military tenants in capite were summoned, or ought to have been summoned, to any great council of the realm, whether for the purpose of levying a new tax, or any other affecting the public weal. The committee, however, laudably cautious in drawing any positive inference, have moved step by step through this obscure path with a circumspection as honourable to themselves as it renders their ultimate judgment worthy of respect.
"The council of the kingdom, however composed (they are adverting to the reign of Henry I.), must have been assembled by the king's command; and the king, therefore, may have assumed the power of selecting the persons to whom he addressed the command, especially if the object of assembling such a council was not to impose any burthen on any of the subjects of the realm exempted from such burthens except by their own free grants. Whether the king was at this time considered as bound by any constitutional law to address such command to any particular persons, designated by law as essential parts of such an assembly for all purposes, the committee have been unable to ascertain. It has generally been considered as the law of the land that the king had a right to require the advice of any of his subjects, and their personal services, for the general benefit of the kingdom; but as, by the terms of the charters of Henry and of his father, no aid could be required of the immediate tenants of the crown by military service, beyond the obligation of their respective tenures, if the crown had occasion for any extraordinary aid from those tenants, it must have been necessary, according to law, to assemble all persons so holding, to give their consent to the imposition. Though the numbers of such tenants of the crown were not originally very great, as far as appears from Domesday, yet, if it was necessary to convene all to form a constitutional legislative assembly, the distances of their respective residences, and the inconvenience of assembling at one time, in one spot, all those who thus held of the crown, and upon whom the maintenance of the Conquest itself must for a considerable time have importantly depended, must have produced difficulties, even in the reign of the Conqueror; and the increase of their numbers by subdivision of tenures must have greatly increased the difficulty in the reign of his son Henry: and at length, in the reigns of his successors, it must have been almost impossible to have convened such an assembly, except by general summons of the greater part of the persons who were to form it; and unless those who obeyed the summons could bind those who did not, the powers of the assembly when convened must have been very defective." (p. 40.)