Hamburgisches UB (4 vols, in 7, Hamburg, 1907–67).
Hansisches UB 1 / Ed. Konstantin Hohlbaum (Halle, 1876).
Hariulf, Gesta ecclesiae Centulensis / Ed. F. Lot, Chronique de l'abbaye de Saint-Riquier (Paris, 1894).
Helbig, Herbert, and Lorenz Weinrich (eds.), Urkunden und erzahlende Quellen zur deutschen Ostsiedlung im Mittetalter (АО 26, 2 vols., Darmstadt, 1968–70).
Helmold of Bosau, Chronica Slavorum / Ed. Heinz Stoob (AQ 19, Darmstadt, rev. ed., 1973).
Henry of Antwerp, Tractatus de captione urbis Brandenburg / Ed. Oswald Holder-Egger, MGH, SS 25 (Hanover, 1880), pp. 482–4.
Henry of Huntingdon, Historia Anglorum / Ed. Thomas Arnold (RS, 1879).
Henry of Livonia, Chronicon Livoniae / Ed. Leonid Arbusow and Albert Bauer (АО 24, Darmstadt, 1959).
Herbord, Dialogus de vita sancti Ottonis episcopi Babenbergensis / Ed. Jan Wikarjak and Kazimierz Liman, MPH, n.s. 7/3 (Warsaw, 1974).
Historia de translatione sanctorum Nicolai, etc., RHC, Occ. 5, pp. 253–92.
Historia monasterii Rastedensis / Ed. Georg Waitz, MGH, SS 25 (Hanover, 1880), pp. 495–511.
Historical Manuscripts Commission, 10th Report, appendix 5 (London, 1885).
History of Gruffydd ap Cynan / Ed. and tr. Arthur Jones (Manchester, 1910).
Honorius III, Opera omnia / Ed. Cesar Auguste Horoy (5 vols., Paris, 1879–82).
Humbert of Silva Candida, Adversus Graecomm calumnias, PL 143, cols. 929–74.
If a Jeddih, Suma de los principales mandamientos у devedamientos de la ley у cunna, Memorial historico espanol 5 (Real Academia de la Historia, Madrid, 1853), pp. 247–421.
Innocent II, Epistolae et privilegia, PL 179, cols. 53–658.
Innocent III, Registrum sive epistolae, PL 214–16.
idem. Die Register Innocenz' III 2 / Ed. Othmar Hageneder et al. (Rome and Vienna, 1979).
idem, Regestum Innocentii I1II papae super negotio Romani imperii / Ed. Friedrich Kempf (Rome, 1947).
Inquisitio Eliensis / Ed. N.E.S.A Hamilton, Inquisitio comitatus Cantabrigiensis, subjicitur Inquisitio Eliensis (London, 1876), pp. 97–183.
Irish Cartularies of Lianthony Prima and Secundo / Ed. Eric St John Brooks (Irish Manuscripts Commission, Dublin, 1953).
Isidore of Seville, Etymologies / Ed. W.M. Lindsay (2 vols, Oxford, 1911, unpaginated).
Itineraires a Jerusalem / Ed. Henri Michelant and Gaston Raynaud (Publications de la Societe de l'Orient latin. Serie geographique 3, Geneva, 1882).
Iura Pnitenorum / Ed. Jozef Matuszewski (Towarzystwo Naukowe w Toruniu: Fontes 53, Torun, 1963).
Jackson, Kenneth H. (ed.), A Celtic Miscellany (rev. ed., Harmondsworth, 1971).
Jacob, G. (ed.), Arabische Berichte von Gesandten an germanische Furstenhofe aus dem 9. und 10. Jahrhundert (Berlin and Leipzig, 1927).
James I, Llibre dels feyts (Cronica) / Ed. Josep Maria de Casacuberta (9 vols, in 2, Barcelona, 1926–62).
Jocelyn of Fumess, Vita sancti Patricii, Acta sanctorum Martii 2 (Antwerp, 1668), pp. 540–80.
John of Hexham, Historia, in Symeonis monachi opera omnia / Ed. Thomas Arnold (2 vols., RS, 1882–5), 2, pp. 284–332.
John of Salisbury, Letters, 1: The Early Letters (1153–61) / Ed. W.J. Millor, H.E. Butler and C.N.L. Brooke (London, etc., 1955).
idem, Policraticus / Ed. C.C.J. Webb (2 vols., Oxford, 1909).
Joinville, John de. Histoire de Saint Louis / Ed. Natalis de Wailly (Paris, 1874).
Kong Valdemars Jordebog / Ed. Svend Aakjaer (3 vols., Copenhagen, 1926–43).
Korlen, Gustav (ed.). Norddeutsch Stadtrechte 2: Das mittelniederdeutsche Stadtrecht von Lübeck nach seinen altesten Formen (Lund and Copenhagen, 1951).
Lacarra, Jose Maria (ed.), 'Documentos para el estudio de la reconquista у repoblacion del Valle del Ebro', Estudios de Edad Media de la Corona de Aragon 2 (1946), pp. 469–574 (docs. 1–93), 3 (1947–8), pp. 499–727 (docs. 94–286), 5 (1952), pp. 511–668 (docs. 287–400); repr. in 2 vols. Textes medievales 62–3 (Saragossa, 1982–3).
Lapidge, Michael (ed.), “The Welsh-Latin Poetry of Sulien's Family”, Studio Celtica 8–9 (1973–4), pp. 68–106.
Lawrence of Durham, Dialogi / Ed. James Raine (Surtees Society 70, 1880 for 1878).
Lechner, Georg (ed.). Die hansischen Pfundzollisten des Jahres 1368 (Quellen und Darstellungen zur hansischen Geschichte, n.s., 10, Lübeck, 1935).
Libellus de institutione morum / Ed. J. Balogh, Scriptores rerum Hungaricarum 2 (Budapest, 1938), pp. 611–27.
Liber actorum, resignationum пес поп ordinationum civitatis Cracoviae / Ed. Franciszek Piekosinski (Monumenta Medii Aevi historica res gestas Poloniae illustrantia 4/1, Cracow, 1878).
Liber cartarum Sancte Crucis / Ed. Cosmo limes (Bannatyne Club, Edinburgh, 1840).
Le liber censuum de l'eglise romaine / Ed. Paul Fabre et al. (3 vols., Paris, 1889–1910).
Liber feudorum major / Ed. Francisco Miquel Rosell (2 vols., Barcelona, 1945–7).
Liber fundationis claustri sanctae Mariae virginis in Heinrichow / Ed. Roman Grodecki, Ksiega Henrykowska (Poznan and Wroclaw, 1949).
Liber fundationis episcopatus Vratislaviensis / Ed. H. Markgraf and J.W. Schulte (Codex diplomaticus Silesiae 14, Breslau, 1889).
Liber vitae ecclesiae Dunelmensis / Ed. A. Hamilton Thompson (facsimile ed.. Surtees Society 136, 1923).
Lites ac res gestae inter Polonos Ordinemque Cruciferorum (2nd ser., 3 vols., Poznan and Warsaw, 1890–1935).
Littere Wallie / Ed. John Goronwy Edwards (Cardiff, 1940).
Liv-, esth- und curldndisches UB / Ed. F.G. von Bunge et al. (1st ser., 12 vols. Reval and Riga, 1853–1910).
Livlandische Reimchronik / Ed. Leo Meyer (Paderbom, 1876).
Lopez, Robert S.r and Irving W Raymond (eds.). Medieval Trade in the Mediterranean World (New York, 1955).
Luke of Tuy, Chronicon mundi / Ed. Andreas Schottus, Hispaniae illustratae (4 vols., Frankfurt/Main, 1603–8) 4, pp. 1–116.
Mac Con Midhe, Giolla Brighde, Poems / Ed. and tr. N.J.A Williams (Irish Texts Society 51, Dublin, 1980).