Papal conclave, September 1590

The papal conclave of September 1590 elected Giovanni Battista Castagna as Pope Urban VII.

There were sixty-seven cardinals attending: seven were French, four Spanish, two Germans, two Poles, and the rest Italian.

Cardinals attending:

• Giovanni Antonio Serbelloni, (aged 71), Suburbicarian Bishop of Ostia and Velletri, Dean of the Sacred College
• Alfonso Gesualdo (aged 50), Suburbicarian Bishop of Porto and Santa Rufina
• Innico d'Avalos d'Aragona (aged 55 or 56), Suburbicarian Bishop of Frascati
• Marc' Antonio Colonna, Suburbicarian Bishop of Palestrina
• Tolomeo Gallio (aged 63), Suburbicarian Bishop of Sabina
• Gabriele Paleotti (aged 68), Suburbicarian Bishop of Albano
• Girolamo Simoncelli (aged 68), Cardinal Priest of Santa Prisca; Administrator of Orvieto.
• Markus Sitticus von Hohenems Altemps (aged 57), nephew of Pius IV, Cardinal Priest of S. Giorgio in Velabro
• Nicolas de Pellevé (aged 75), Cardinal Priest of S. Prassede (died 1594) Archbishop of Sens.
• Ludovico Madruzzo (aged 58), nephew of Cardinal Cristoforo Madruzzi, Cardinal Priest of S. Onofrio (d. 1600) Bishop of Trent.
• Michele Bonelli, OP (aged 49), Cardinal Priest of S. Lorenzo in Lucina, Cardinal Vicar of Rome, grand nephew of Pius V,
• Antonio Carafa (aged 52), Cardinal Priest of S. Giovanni e Paolo
• Giulio Antonio Santorio (aged 57), Cardinal Priest of S. Bartolommeo all' Isola
• Girolamo Rusticucci (aged 53), Cardinal Priest of S. Susanna, former Bishop of SinigagliaVicar General of Rome
• Gian Girolamo Albani (aged 86), Cardinal Priest of San Giovanni a Porta Latina
• Pedro de Deza (aged 70), Cardinal Priest of San Girolamo dei Croati; Professor of Law at Salamanca. Grand Inquisitor
• Giovanni Gonzaga (aged 49), Cardinal Priest of S. Alessio. Knight of St. John of Jerusalem
• Giovanni Antonio Facchinetti (aged 71), Cardinal Priest of Santi Quattro Coronati
• Giovanni Battista Castagna (aged 68), Cardinal Priest of S. Marcello. Doctor in utroque iure, Bologna elected as Pope Urban VII
• Alessandro de' Medici (aged 55), Cardinal Priest of S. Giovanni e Paolo
• Niccolò Sfondrati (aged 55), Cardinal Priest of S. Cecilia Bishop of Cremona
• Giulio Canani (aged 66), Cardinal Priest of S. Anastasia Bishop of Modena
• Agostino Valier (aged 59), Cardinal Priest of S. Marco; Bishop of Verona
• Antonmaria Salviati (aged 53), Cardinal Priest of S. Maria della Pace
• Vincenzo Lauro (aged 67) Cardinal Priest of S. Clemente, Bishop of Mondovi
• Simeone Tagliavia d' Aragona (aged 40), Cardinal Priest of S. Maria degli Angeli
• Filippo Spinola (aged 55), Cardinal Priest of S. Sabina
• Scipione Lancelotti (aged 63), Cardinal Priest of S. Salvatore in Lauro
• Giovanni Battista Castrucci (aged 49), Cardinal Priest of S. Maria in Aracoeli, Archbishop of Chieti
• Federico Cornaro (aged 59), Cardinal Priest of S. Stefano Rotondo, Bishop of Padua
• Domenico Pinello (aged 49), Cardinal Priest of S. Crisogono, Professor of Law at Padua; Archpriest of S. Maria Maggiore
• Ippolito Aldobrandini (aged 54), Cardinal Priest of S. Pancrazio; Major Penitentiary
• Girolamo della Rovere (aged 62), Cardinal Priest of S. Pietro in vincoli, Archbishop of Turin
• Girolamo Bernerio, OP (aged 50), Cardinal Priest of S. Maria sopra Minerva, Bishop of Ascoli
• Antonio Maria Galli (37), Cardinal Priest of S. Agnese in Agone, Bishop of Perugia
• Costanzo da Sarnano, OFM Conv. (aged 59), Cardinal Priest of S. Pietro in Montorio
• Benedetto Giustiniani (aged 36), Cardinal Priest of S. Marcello
• William Allen (aged 58), Cardinal Priest of SS. Silvestro e Martino
• Scipione Gonzaga (aged 47), Cardinal Priest of S. Maria del Popolo, Latin Patriarch of Jerusalem
• Antonmaria Sauli (aged 49), Cardinal Priest of S. Stefano al Monte Celio, former Bishop of Genoa
• Giovanni Palotta (aged 42), Cardinal Priest of S. Matteo in Merulana, former Archbishop of Cosenza, Archpriest of the Vatican Basilica Papal Datary
• Juan Hurtado de Mendoza (aged 42), Cardinal Priest of S. Maria in Trastevere
• Giovanni Francesco Morosini (aged 53), Cardinal Priest of S. Maria in Via, Bishop of Brescia
• Mariano Pierbenedetti (aged 52) Cardinal Priest of SS. Marcellino e Pietro
• Gregorio Petrocchini (aged 55), Cardinal Priest of S. Agostino
• Francesco Sforza di Santa Fiora (aged 28), Cardinal Deacon of S. Maria in Via Lata, Grand-nephew of Pope Paul III.
• Paolo Emilio Sfondrati (aged 30), Cardinal Priest of S. Cecilia (died 1618) Cardinal nipote of Gregory XIV
• Alessandro Damasceni Peretti (aged 19), Cardinal Deacon of S. Lorenzo in Damaso, Vice-Chancellor of the Holy Roman Church, grand-nephew of Sixtus V
• Girolamo Mattei (aged 43), Cardinal Deacon of S. Eustachio
• Ascanio Colonna (aged 30), Cardinal Deacon of S. Maria in Cosmedin. Knight of Malta
• Federico Borromeo (aged 26), Cardinal Deacon of S. Nicola in Carcere Tulliano
• Agostino Cusani (aged 48), Cardinal Priest of S. Lorenzo in Panisperna
• Francesco Maria Del Monte (aged 41), Cardinal Deacon of S. Maria in Domnica
• Guido Pepoli (aged 30), Cardinal Deacon of San Cosma e Damiano

Cardinals not attending

• Andreas von Austria (aged 31) Cardinal Deacon of Santa Maria Novae
• Albrecht von Austria (aged 29), Cardinal Deacon of Santa Croce in Gerusalemme
• Gaspar de Quiroga y Vila (aged 78) Cardinal Priest of Santa Balbina, Archbishop of Toledo
• Hugues Loubenx de Verdalle (aged 59), Cardinal Deacon of Santa Maria in Portico, Grand Master of the Sovereign order of the Knights of Saint John of Jerusalem
• François de Joyeuse (aged 28), Cardinal Priest of Santissima Trinità dei Monti, Archbishop of Toulouse, Protector of France
• Jerzy Radzvil (Radziwill) (aged 34), Cardinal Priest of San Sisto Vecchio, Bishop of Krakow
• Andreas Bathóry (aged 24), Cardinal Deacon of S. Adriano
• Rodrigo de Castro Osorio (aged 67) Cardinal Priest of SS. XII Apostoli, Archbishop of Seville
• Charles de Bourbon de Vendome (aged 28), Cardinal Deacon without a deaconry, Archbishop-elect of Rouen
• Enrico Caetani (aged 40), Cardinal Priest of Santa Pudenziana, Latin Patriarch of Alexandria, Cardinal Camerlengo Legate in France
• Charles de Lorraine-Vaudemont (aged 23), Cardinal Deacon of S. Agata in Suburra
• Philippe de Lenoncourt (aged 63), Cardinal Priest of San Onofrio
• Pierre de Gondi (aged 58), Cardinal Priest of San Silvestro in Capite, Bishop of Paris