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Bio-Bibliographical Guide to Medieval and Early Modern Jurists

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Report No. r278

Guillelmus de Mandagato

d. 1321


Alternative Names

Guilelmus de Madagazio; Guillaume de Mandagazio; Guilelmus de Mandagazio



Guilelmus studied canon law at Bologna under Bérengar de Frédol and obtained a doctorate in 1275. By 1286, hewas serving in the Roman curia as an apostolic notary. He became a papal chaplain in 1291. In 1295, Boniface VIII appointed him to the archbishopric of Embrun, as well as to the commission drafting the Liber sextus (1296). Guillelmus briefly transferred to the see of Aix (1311–12), until he was made cardinal bishop of Palestrina in.He died in December of 1321. Guillelmus was one of the editors of the Liber Sextus, wrote a tract on elections, and drafted the statutes for the abbey of Montmajour. He was thought to have written a Summa on the Liber Extra, but this has recently been discounted.



No. 1

Tractatus de electionibus. Also titled Expositio.

No. 2

Liber sextus. See under Liber sextus.

No. 3

Statutes for the abbey of Montmajour.


Text(s) – Manuscripts

No. 1

Tractatus de electionibus.


With glosses


Bamberg, Staatsbibl. P.II.23, fol. 130–63


Barcelona, Arch. Corona Aragón Ripoll 43, fol. 91r–124v


Berlin, Staatsbibl. lat. fol. 276, fol. 147–179


Chartres, BM 277


Paris, BN lat. 14328, fol. 13ra–24vb


Without glosses


Autun, BM 96


Bamberg, Staatsbibl. P.III.12


Erfurt, Stadt u. Regionalbibl. CA 2o 144, fol. 1r–25r


Erlangen, Universitätsbibl. 164


Frankfurt am Main, Stadt- und Universitätsbibl. Barth. 13, fol. 151r–170v


Halle, Universitäts- u. Landesbibl. Ye. fol. 50


Klosterneuberg, Stiftsbibl. 96


Laon, BM 190


Laon, BM 191


Laon, BM 192


Leipzig, Universitätsbibl. 975


München, BSB Clm 4111


München, BSB Clm 9539


Paris, BN lat. 4055, fol. 183–202r


Paris, BN lat. 8926


Paris, BN lat. 15415


Praha, Národní Muz. M.17, fol. 133


Reims, BM 769, fol. 1r–18r


Troyes, BM 379


Troyes, BM 831


Troyes, BM 1172


Wien, ÖNB 2210


Würzburg, Universitätsbibl. Mp. th. f.55


Text(s) – Early Printed Editions

No. 1

Tractatus de electionibus.

Early Printed Editions

Paris, 1506.


Paris, 1523.


Köln, 1573.


Tractatus universi iuris. Venezia: F. Ziletti, 1584, 15.1.407.



G. Mollat, ‘Guillaume de Mandagout’, in DHGE (1988) 22.129–30, 951–52.

M. Bertram, ‘Kirchenrechtliche Vorlesungen aus Orleans’, Francia: Forschungen zur westeuropäischen Geschichte, 2 (1974) 216–17.

G. Mollat, ‘Guillaume de Mandagout’, in DDC (1953) 5.1077–78.

P. Viollet, ‘Guillaume de Mandagout canoniste’, in HLF (1915) 34.1–61.

J. von Schulte, QL 2.183–85.