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Medieval Music Database

Lux purpurata radiis; Diligite iustitiam

Three-voice motet by Jacopo da Bologna


Florence: San Lorenzo, Archivio Capitolare 2211 [palimpsest], fol. 61v (illegible; Motetus only);
Padua: Biblioteca Universitaria 1475, number 15 (3/2).


The Music of Jacopo da Bologna, edited by W. Thomas Marrocco, Berkeley: University of California, 1954. University of California Publications in Music 5.


1. Les monuments de l'Ars nova, edited by Guillaume de Van, Paris: Editions de L'Oiseau-Lyre, 1938.
2. The Music of Jacopo da Bologna, edited by W. Thomas Marrocco, Berkeley: University of California, 1954. University of California Publications in Music 5, p. 60.
3. The Music of Fourteenth-Century Italy, edited by Nino Pirrotta, Rome: American Institute of Musicology, 1963. Corpus Mensurablis Musicae 8/IV, p. 40.
4. Italian Sacred and Ceremonial Music, edited by Kurt von Fischer and F. Alberto Gallo, Monaco: Editions de L'Oiseau-Lyre, 1987. Polyphonic Music of the Fourteenth Century XIII, p. 194.
5. Francesco Landini. 'Musica son' for 3 voices or instruments, edited by Bernard Thomas, London: London Pro Musica Edition, 1989. Early Music Library 161.


1. ELLINWOOD, Leonard. 'The Fourteenth Century in Italy', [chapter 2 of] The New Oxford History of Music. III. Ars Nova and the Renaissance, edited by Dom Anselm Hughes and Gerald Abraham, London: Oxford University Press, 1960, p. 72.
2. FISCHER, Kurt von. 'Zur Ciconia-Forschung', Die Musikforschung, XIV (1961), p. 321.
3. SEAY, Albert. Music in the Medieval World, Englewood Cliffs, New Jersey: Prentice-Hall, 1975, p. 158.
4. THIBAULT, Geneviève. 'Emblèmes et devises des Visconti dans les oeuvres musicales du Trecento', L'Ars nova italiana del Trecento III: Certaldo 1969, 1970, p. 134.
5. VECCHI, Giuseppe. 'Letteratura e musica nel Trecento', L'Ars nova italiana del Trecento III: Certaldo, 1969, 1970, p. 500.
6. FISCHER, Kurt von. 'Musica e società nel Trecento italiano', L'Ars nova italiana del Trecento III: Certaldo 1969, 1970, p. 15.
7. PETROBELLI, Pierluigi. '"Un leggiadretto velo" ed altre cose petrarchesche', Rivista Italiana di Musicologia, X (1975), p. 37.
8. WILKINS, Nigel. Music in the Age of Chaucer, Cambridge: D. S. Brewer, 1979. Chaucer Studies I, p. 67.
9. D'ACCONE, Frank. 'Una nuova fonte dell' "Ars nova" italiana: il codice di San Lorenzo, 2111', Studi Musicali, XIII (1984): 3-31.
10. FISCHER, Kurt von. 'Sprache und Musik im italienischen Trecento: Zur Frage einer Frührenaissance', Musik und Text in der Mehrstimmigkeit des 14. und 15. Jahrhunderts, edited by U. Günther and L. Finscher, Kassel: Bärenreiter: 1984, p. 45.
11. CILIBERTI, Galliano. Prodizione, consumo e diffusione della musica in Italia nel tardo medioevo, Perugia: Centro di Studi Musicali in Umbria, 1989, p. 19.
12. NADAS, John. 'Editorial practices in early Quattrocento Florentine anthologies of secular polyphony', L'Ars nova italiana del Trecento VI: Certaldo 1984, Certaldo: Centro di Studio L'ars nova italiana, 1992.


1. [Jacopo], Palliard (Paillard?) Vocal Ensemble: Erato STU 70687.
2. Monuments of the Ars Nova, vol. 2, J. L. Daniels (S), R. Bonté (T), A. Lafosse (bass-trumpet),, directed by Guillaume de Van (1939?): Oiseau-Lyre OL 2 (78rpm, 12'').
3. The Ars Nova: Vocal Music of 14-Century France and Italy, Capella Cordina, directed by Alejandro Planchart (1966): Expériences Anonymes EA/EAS 83.
4. Jacopo da Bologna: Italienische Madrigale des 14. Jahrhunderts, P.A.N. Ensemble Project Ars Nova (1985): Harmonia Mundi HM 738A.
5. Two Gentlemen of Verona, Ensemble of the Fourteenth Century, directed by John Griffiths and John Stinson (1987): Move MC 3091.



Lux purpurata radiis
Venti fugare tenebras.
Clementi vigens principe.

Honoris namque claritas
Ipsius toti seculo
Numen acquirit celebre
Virtutis atque gratie.

Servator rei publicae.
Virtutum cultor optimus.
Verus amator efficax.
Constans in omnis studio.
Et nil permittens irritum.
Clemens et iustus dominus.
Onustus arrogantibus.
Misericors egentibus
Emittit lumen omnibus
Salutis atque premii.


Diligite iustitiam
Qui iudicatis machinam.
Prodesse cunctis discite.
Obesse nulli querite.
Hoc proprium est principis.
Ut sit exutum viciis.
Solicitudo presuli
Sit comes, ut pacifice
Quiescant ejus populi.



Light, flourishing under the rule
of the clement prince, comes adorned
with rays to chase away darkness.

His honour and brilliance
acquire throughout the whole age
renowned authority
of virtue and grace.

Saviour of the state.
the greatest cultivator of virtue.
effective and true lover.
constant in all study.
enemy of all vanity.
clement and just lord.
hard on the arrogant.
compassionate to the poor.
who irradiates for all a light
of salvation and reward.


Choose justice
you who judge the machine [of the state].
Learn to help all men.
seek to harm no one.
This is worthy of a prince.
that he may be without vice.
May solicitude be
the companion of the protector.
so that his people may rest peacefully.

Text revision and translation © EA 83; RH;

Content Approved by: MMDB Director
Last updated: Wednesday, 19 March 2003

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