The papal conclave of 1623 was the papal conclave of Cardinals called on the death of Pope Gregory XV. It lasted eighteen days from 19 July 1623 to 6 August 1623 and chose Maffeo Barberini, who took office as Pope Urban VIII.
The College of Cardinals was then made up of 66 members, of whom all but 12 cardinals were in Rome at the time the conclave was called, so the conclave had 54 participants, chosen by the following popes:
Pope Gregory XV: 9 cardinals
Pope Paul V: 32 cardinals
Pope Clement VIII: 8 cardinals
Pope Gregory XIV: 2 cardinals
Pope Sixtus V: 2 cardinals
Pope Gregory XIII: 1 cardinal
The conclave divided up into four factions:
The elderly, who had risen to cardinal even before the accession of Pope Paul V
The prince-cardinals from the Farnese and d'Este families, as well as the cardinal of Savoy
The 22 to 25 Borghesiani, created by the Borghese pope, Paul V
The Ludovisiani, the cardinal-nephews of Gregory XV and their supporters, led by Ludovico Ludovisi, initially including only 15 cardinals but later rising to 20.
Cardinal Dean: Antonio Maria Sauli
Sub-dean: Francesco Maria del Monte
Maffeo Barberini
Giovanni Battista Deti
Francesco Sforza di Santa Fiora
Ottavio Bandini
Federico Borromeo
Andrea Baroni Peretti Montalto
Bonifazio Bevilacqua Aldobrandini
Alessandro d'Éste
Domenico Ginnasi
Carlo Gaudenzio Madruzzo
Giovanni Doria
Carlo Emanuele Pio di Savoia
Scipione Borghese
Giovanni Garzia Millini
Marcello Lante della Rovere
Maurizio di Savoia
Fabrizio Veralli
Giovanni Battista Leni
Luigi Capponi
Dezio Carafa
Domenico Rivarola
Pier Paolo Crescenzi
Giacomo Serra
Agostino Galamini
Gaspar Borgia
Felice Centini
Roberto Ubaldini
Tiberio Muti
Gabriel Trejo Paniagua
Carlo de Medici
Giulio Savelli
Melchior Klesl
Pietro Campora
Matteo Prioli
Scipione Cobelluzzi
Francesco Cennini de' Salamandri
Guido Bentivoglio
Pietro Valier
Eitel Friedrich von Zollern
Giulio Roma
Cesare Gherardi
Desiderio Scaglia
Stefano Pignatelli
Ludovico Ludovisi
Antonio Caetani
Francesco Sacrati
Francesco Boncompagni
Ippolito Aldobrandini
Lucio Sanseverino
Marcantonio Gozzadini
Cosmo de Torres
Ottavio Rodolfi
Franz von Dietrichstein
François de Sourdis
Antonio Zapata y Cisneros
François de la Rochefoucald
Baltasar de Moscoso y Sandoval
Alessandro Orsini
Francisco Gómez de Sandoval y Rojas
Ferdinand of Austria
Louis de Nogaret d´Epernon de la Valette
Agostino Spinola
Armand-Jean du Plessis de Richelieu
Alfonso de la Cueva
