Pope Gregory XV

Pope Gregory XV (Latin: Gregorius XV; 9 January 1554 – 8 July 1623), born Alessandro Ludovisi, was Pope from 9 February 1621 to his death in 1623.[1]


Gregory XV
Bishop of Rome
Pope Gregory XV
Papacy began9 February 1621
Papacy ended8 July 1623
PredecessorPaul V
SuccessorUrban VIII
Consecration1 May 1612
by Cardinal Scipione Caffarelli-Borghese
Created cardinal19 September 1616
by Pope Paul V
Personal details
Birth nameAlessandro Ludovisi
Born9 January 1554
Bologna, Papal States
Died8 July 1623 (aged 69)
Rome, Papal States
Previous post
Coat of armsGregory XV's coat of arms
Other popes named Gregory


Papal styles of
Pope Gregory XV
C o a Gregorio XV
Reference styleHis Holiness
Spoken styleYour Holiness
Religious styleHoly Father
Posthumous styleNone

Early life

Alessandro Ludovisi was born in Bologna in 1554 to Pompeo Ludovisi, the Count of Samoggia (now Savigno in the Province of Bologna) and of Camilla Bianchini. He was one of seven children and was born as the third child.

Bust of Pope Gregory XV by Bernini 1621
Bust of Pope Gregory XV by Bernini

He was educated at the Roman College run by the Society of Jesus in Rome and he then went to the University of Bologna to get degrees in canon and Roman law which he received on June 4, 1575. His early career was as a papal jurist in Rome, and there is no evidence that he had been ordained to the priesthood.

He returned to Rome in 1575 and he served as the Referendary of the Apostolic Signatura from 1593 to 1596 and was appointed as the Vicegerent of Rome in 1597, a position he maintained until 1598. He also served as the Auditor of the Sacred Roman Rota from 1599 to 1612.

On 12 March 1612, Pope Paul V appointed him as the Archbishop of Bologna, for which he was presumably ordained to the priesthood and then he was consecrated a bishop on 1 May of that year in the church of San Andrea al Quirinale in Rome.

In August 1616, the pope sent him as Apostolic Nuncio to the Duchy of Savoy, to mediate between Charles Emmanuel I, Duke of Savoy and Philip III of Spain in their dispute concerning the Gonzaga Marquisate of Montferrat.[2][a]

On 19 September 1616, Pope Paul V elevated him to the rank of cardinal and appointed him as a Cardinal Priest with the titular church of Santa Maria in Traspontina.


Papal conclave

Ludovisi remained in his episcopal see in Bologna until he went to Rome after the death of Pope Paul V to take part in the conclave at which he was chosen as pope and he selected the pontifical name of "Gregory XV". He was crowned on 14 February 1621 by the protodeacon, Cardinal Andrea Baroni Peretti Montalto, and assumed possession of the Basilica of Saint John Lateran on 14 May 1621.

At the moment of his election, chiefly through the influence of Cardinal Borghese, at his advanced age (he was 67) and with his weak state of health he saw at once that he would need an energetic man, in whom he could place implicit confidence, to assist him in the government of the Church. His nephew Ludovico Ludovisi, a young man of 25 years, seemed to him to be the right person and, at the risk of being charged with nepotism, he created him cardinal on the third day of his pontificate. On the same day, his youngest brother Orazio was appointed Captain General of the Church at the head of the papal army.[2]

Ludovico Ludovisi with Gregory XV
Pope Gregory XV with his cardinal-nephew of unprecedented income and authority, Ludovico Ludovisi, known as il cardinale padrone

The future revealed that Gregory XV was not disappointed in his nephew. The Catholic Encyclopedia allows that "Ludovico, it is true, advanced the interests of his family in every possible way, but he also used his brilliant talents and his great influence for the welfare of the Church, and was sincerely devoted to the pope".[2] Gregory secured for the Ludovisi two dukedoms, one for his brother Orazio, made a Nobile Romano and Duke of Fiano Romano, 1621, and the other, the Duchy of Zagarolo, purchased from the Colonna family by his nephew Ludovico Ludovisi in 1622. A second nephew, Niccolò, was made reigning Prince of Piombino and Lord of the Isola d'Elba in 1634, having married the heiress, 30 March 1632.


Gregory XV interfered little in European politics, beyond assisting Ferdinand II, Holy Roman Emperor, and the Catholic League against the Protestants[1]—to the tune of a million gold ducats—as well as Sigismund III Vasa, King of the Polish–Lithuanian Commonwealth, against the Ottoman Empire.[1] His Declaration against Magicians and Witches (Omnipotentis Dei, 20 March 1623) was the last papal ordinance against witchcraft. Former punishments were lessened, and the death penalty was limited to those who were "proved to have entered into a compact with the devil, and to have committed homicide with his assistance".[2]

He was a learned theologian and manifested a reforming spirit.[1] As an example, his papal bull of 15 November 1621, Aeterni Patris Filius, regulated papal elections, which henceforth were to be by secret ballot; three methods of election were allowed: by scrutiny, compromise and quasi-inspiration. On 6 January 1622, he established the Congregation for the Propagation of the Faith, the missionary arm of the Holy See.[2] His pontificate was marked by the canonizations of Teresa of Avila, Francis Xavier, Ignatius Loyola,[1] Philip Neri and Isidore the Farmer. He also beatified Peter of Alcantara. He was influential in bringing the Bolognese artist Guercino to Rome, a landmark in the development of the High Baroque style. He sat for his portrait busts, one of which was by Gian Lorenzo Bernini and by Alessandro Algardi, whose restrained bust in a tondo is in the Church of Santa Maria in Vallicella.


The pope created eleven cardinals in four consistories that saw him elevate his nephew Ludovico and his cousin Marcantonio Gozzadini as cardinals; he also elevated the noted Armand Jean Richelieu as a cardinal.

Canonizations and beatifications

On 12 March 1622, the pope canonized several saints: Francis Xavier, Ignatius of Loyola, Isidore the Laborer, Philip Neri and Teresa of Ávila.

Gregory XV also beatified three individuals during his pontificate: Ambrose Sansedoni of Siena, Albert the Great, and Peter of Alcantara.

Death and burial

Tomb of Pope Gregorius XV
Tomb of Pope Gregory XV

Gregory XV died in the Quirinal Palace on 8 July 1623 and was buried in the Church of Sant'Ignazio. He was succeeded by Pope Urban VIII.[1] The pope had been suffering from kidney stones for some time and was bedridden from 16 June to 1 July 1623, having been suffering from diarrhea and a stomach disorder that caused him great discomfort. His condition worsened on 4 July, as a fever greatly weakened him, leading to the pope receiving the Viaticum on 5 July and the Extreme Unction on 6 July, before succumbing to his illness two days later.[3]

See also


  1. ^ The dispute eventually led to the War of the Mantuan Succession, which lasted 1628–31.
  1. ^ a b c d e f Baynes & Smith 1880, pp. 178–179.
  2. ^ a b c d e Ott 1910.
  3. ^ "Sede Vacante 1623". 27 September 2015. Retrieved 20 January 2019.



Further reading

  • Wassilowsky, Günther; Wolf, Hubert (2007). Päpstliches Zeremoniell in der Frühen Neuzeit – Das Diarium des Zeremonienmeisters Paolo Alaleone de Branca während des Pontifikats Gregors XV. (1621–1623) (in German). Münster: Rhema-Verlag. ISBN 978-3-930454-80-8.
  • Wikisource Collier, Theodore Freylinghuysen (1911). "Gregory XV" . In Chisholm, Hugh (ed.). Encyclopædia Britannica. 12 (11th ed.). Cambridge University Press. p. 575.
Catholic Church titles
Preceded by
Scipione Borghese
Archbishop of Bologna
12 March 1612 – 9 February 1621
Succeeded by
Ludovico Ludovisi
Preceded by
Erminio Valenti
Cardinal-Priest of Santa Maria in Traspontina
(3 Dec 1618 – 9 Feb 1621
Succeeded by
Ludovico Ludovisi
Preceded by
Paul V
9 February 1621 – 8 July 1623
Succeeded by
Urban VIII
1621 papal conclave

The papal conclave of 1621 (February 8 – February 9) was convened on the death of Pope Paul V and ended with the election of Alessandro Ludovisi as Pope Gregory XV. It was the shortest conclave in the seventeenth century.

Aeterni Patris Filius

Aeterni Patris Filius (English: Son of the Eternal Father), also called Aeterni Patris, was a bull issued by Pope Gregory XV on 15 November 1621 that regulated papal conclaves. Together with the bull Decet Romanum pontificem of 1622, it formed the canonical basis for papal elections until the 20th century. The bull brought about many reforms to the papal election system, created structured rules, and sought to decrease the influence of organized factions within the College of Cardinals during the conclave as well as decrease the influence of secular monarchs on papal elections. It established general rules for the conclave process, while the later bull Decet Romanum pontificem addressed the ceremonial aspects of papal elections.

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Bust of Pope Gregory XV

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