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Bio-Bibliographical Guide to Medieval and Early Modern Jurists

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Report No. a565

Guillelmus de Longchamp

d. 1197


Alternative Names

Guiillelmus de Longocampo; William Longchamp; William de Longchamp; Guillaume de Longchamps



An Anglo-Norman canonist, was the author of a procedural treatise, Practica legum et decretorum (c.1183–89). He later became bishop of Ely (1189–1197), a papal legate, and chancellor of the English king Richard the Lionheart. During Richard’s time away on crusade, he governed England but faced opposition from Richard’s brother, John. After exile and efforts to negotiate the release of Richard from Emperor Henry VI, he returned to England with Richard and finished out his days in the king’s service and as bishop until his death in 1197.



No. 1

Practica legum et decretorum.


Text(s) – Manuscripts

No. 1

Practica legum et decretorum.


Paris, BN lat. 3454, fol. 53r–v, 55v (fragment; cf. G. Fransen, ZRG Kan. Abt. 55 [1969] 438–39.)


Text(s) – Modern Editions

No. 1

Practica legum et decretorum.

Modern Editions

Le droit civil dans les provinces anglo-normandes au XIIe siècle, ed. E. Caillemer (Caen 1883) 157–226.


Completed by Rectifications et additions au texte imprimé de la “Practica legum et decretorum”,A RHDFE, 44 (1966) 115–18.



L. Fowler-Magerl, Ordo iudiciorum vel ordo iudiciarius (Ius Commune, Sonderheft 19; Frankfurt am Main 1984) 113–14.

S. Kuttner, ‘Retractationes VIII’, in Gratian and the Schools of Law (London 1983) 28.

S. Kuttner, ‘Anglo-Norman Canonists of the Twelfth Century’, Traditio, 7 (1949/51) 290.

S. Kuttner, ‘Les débuts de l’école canoniste française’, SDHI, 4 (1938) 20.