- Preface
- Illustrations*
- Introduction
- 1. The Science of the Stars: Learning Astrology at the University of Pavia
- 2. The Making of a Dynasty: Astrology under Bianca Maria Visconti and Francesco Sforza
- 3. Astrology Is Destiny: Galeazzo Maria Sforza and the Political Uses of Astrology
- 4. The Star-Crossed Duke: Gian Galeazzo Sforza and Medical Astrology
- 5. The Viper and the Eagle: The Rise and Fall of Astrology under Ludovico Sforza
- Epilogue
- Abbreviations
- Notes
- Bibliography
- Acknowledgments
- Index
- * Illustrations:
- Figure 1. Lamento del Duca Galeazo, Duca di Milano, quando fu morto in Sancto Stephano da Gioanandrea da Lampognano (Florence: Bernardo Zucchetta, for Piero Pacini da Pescia, 24 October, 1505).
- Figure 2. Homo signorum, or zodiac man, from Johannes Ketham, Fasciculo de medicina in vulgare (Venice: Giovanni and Gregorio de Gregori da Forlì, 5 February, 1493/94).
- Figure 3. Homo venorum, or vein man, from Johannes Ketham, Fasciculo de medicina in vulgare (Venice: Giovanni and Gregorio de Gregori da Forlí, 5 February, 1493/94).
- Figure 4. Diagram of the phases of the Moon, from Johannes Sacrobosco, Computus in British Library, MS Arundel 88, fol. 38r.
- Figure 5. Diagram of the phases of the Moon, from Johannes Sacrobosco, Compotus in Cambridge University Library, MS li.III.3, fol. 46v.
- Figure 6. Frontispiece woodcut of the celestial spheres and the four elements, from Judicium cum tractatibus planetariis (Milan: Filippo Mantegazza, 20 December, 1496).
- Figure 7. Table of contents of Giovanni Battista Boerio’s transcription of eleven out of the twelve original chapters of John of Bruges’s De veritate astronomie, from British Library, MS Arundel 88, fol. 15r.
- Figure 8. Table of contents of the Judicium cum tractatibus planetariis (1496), which contains eleven out of twelve chapters of John of Bruges’s De veritate astronomie.
- Figure 9. Ornate initial from Alcabitius, Liber introductorius (Venice: Erhard Ratdolt, 1485), sig. aa2r.
- Figure 10. Ornate initial within a dense two-column page in tironian type from Ptolemy’s Quadripartitum, in Opera astrologica (Venice: Bonetto Locatelli for Ottaviano Scoto, 20 December, 1493), sig. A2r.
- Figure 11. Diagram of the aspects of the planets from Alcabitius, Liber introductorius (Venice: Erhard Ratdolt, 1485), sig. aa5r.
- Figure 12. Ptolemaic celestial sphere with the zodiac and the ecliptic, from Johannes Sacrobosco, Sphaera (Venice: Simone Bevilacqua da Pavia, 1499), sig. a2v.
- Figure 13. Figura coeli, or square celestial chart with the house division, from Alcabitius, Liber introductorius (Venice: Erhard Ratdolt, 1485), sig. bb1v.
- Figure 14. Geniture of Ludovico Maria Sforza, from Girolamo Cardano, De exemplo centum geniturarum, in Opera Omnia, 10 vols. (Lyon: Jean Antoine Huguetan & Marc Antoine Ravaud, 1663), vol. 5, 463.
- Figure 15. Raffaele Vimercati donating his iudicium to Francesco Sforza, fourth Duke of Milan and father of Galeazzo Maria Sforza, from Biblioteca Trivulziana, MS Triv. 1329, Liber iudiciorum in nativitate Comitis GaleazMarie Vicecomitis Lugurum futuri ducis (1461), fol. 2r.
- Figure 16. Geniture of Galeazzo Maria Sforza, from Biblioteca Trivulziana, MS Triv. 1329, Liber iudiciorum in nativitate Comitis GaleazMarie Vicecomitis Lugurum futuri ducis (1461), fol. 21r.
- Figure 17. Annius of Viterbo’s interrogation about the possible death of the King of Naples, Ferrante of Aragon (chart), from ASMi, Sforzesco, Miscellanea, 1569, Annius of Viterbo to Galeazzo Maria Sforza, Genoa, November 24, 1475.
- Figure 18. Reconstructed chart from Ambrogio Varesi da Rosate’s interrogation about the arrival of the Habsburg envoys dated July 18, 1492, derived from Varesi’s letter to Ludovico Sforza in ASMi, Autografi, Medici 219, Ambrogio Varese da Rosate to Ludovico, Milan, July 20, 1492.
- Figure 19. Reconstructed chart of the Sun’s entry into the first degree of Aries (Spring Equinox), derived from Varesi’s letter to Ludovico Sforza in ASMi, Autografi, Medici 219, Ambrogio Varese da Rosate to Ludovico, Milan, July 20, 1492.
Dumbarton Oaks Medieval Library
I Tatti Renaissance Library
Loeb Classical Library
Murty Classical Library of India