The evidence for this is chiefly inferential, but would be greatly strengthened if we could establish the genuineness of the charter discussed by Mr. J. H. Round, Mr. Prothero, and Mr. Hubert Hall in _Eng. Hist. Rev._, VIII. 288, and IX. 117 and 326. See the document in Appendix. ----- A definite understanding on this vital question was never arrived at—not even on paper, since chapter 16 of Magna Carta contented itself with the bald provision that existing services were not to be increased (without defining what these were). This was merely to shelve the difficulty: the dispute went on under varying forms and led to a violent clashing of wills in the unseemly wrangle between Edward I. and his Constable and Marshal, dramatized in a classic passage by Walter of Hemingburgh.[123] Strangely enough, the _Confirmatio Cartarum_ of 1297, which was, in part, the outcome of this later quarrel, omits (like Magna Carta itself)[124] all reference to foreign service. The total omission from both charters of all mention of the chief cause of dispute is noteworthy. It must be remembered, however, that the question of liability to serve abroad had practically resolved itself into that of liability to scutage, and that chapters 12 and 14 of the Charter of 1215 provided an adequate check on the levy of all scutages; but this is a subject of crucial importance, which requires separate and detailed treatment. ----- Footnote 123: _Chronicon_, II. 121. Footnote 124: See, however, _infra_ under c. 16. ----- IV. _Scutage._ The Crown did not always insist on actual personal service, but was frequently willing to accept a commutation in the form of a money payment. This subject of scutage is one of the most vexed of questions; all received opinions of yesterday having to-day been thrown into the melting pot. Serious attempts constructively to restate the whole subject have hardly been made; and no conclusions have yet received general acceptance. Three modifications, however, of the theories of Stubbs and Freeman, once universally accepted, seem likely to be soon established: (1) that “scutage” is an ambiguous term with a vague general meaning as well as a narrow technical meaning; (2) that the importance of the changes introduced by Henry II. in 1156 and 1159 has been much exaggerated; and (3) that at a later time, probably during John’s reign, scutage changed its character. It ceased to be normally a commutation of service, since it was not infrequently exacted by the Crown in _addition_ to military service actually performed. Each of these propositions requires explanation.