Pope Sixtus IV ( it, Sisto IV: 21 July 1414 – 12 August 1484), born Francesco della Rovere, was head of the

Catholic Church The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with 1.3 billion baptized Catholics worldwide . It is among the world's oldest and largest international institutions, and has played a ...

and ruler of the

Papal States The Papal States ( ; it, Stato Pontificio, ), officially the State of the Church ( it, Stato della Chiesa, ; la, Status Ecclesiasticus;), were a series of territories in the Italian Peninsula under the direct sovereign rule of the pope fro ...

from 9 August 1471 to his death in August 1484. His accomplishments as

pope The pope ( la, papa, from el, πάππας, translit=pappas, 'father'), also known as supreme pontiff ( or ), Roman pontiff () or sovereign pontiff, is the bishop of Rome (or historically the patriarch of Rome), head of the worldwide Cathol ...

included the construction of the

Sistine Chapel The Sistine Chapel (; la, Sacellum Sixtinum; it, Cappella Sistina ) is a chapel in the Apostolic Palace, the official residence of the pope in Vatican City. Originally known as the ''Cappella Magna'' ('Great Chapel'), the chapel takes its name ...

and the creation of the

Vatican Library The Vatican Apostolic Library ( la, Bibliotheca Apostolica Vaticana, it, Biblioteca Apostolica Vaticana), more commonly known as the Vatican Library or informally as the Vat, is the library of the Holy See, located in Vatican City. Formally es ...

. A patron of the arts, he brought together the group of artists who ushered the Early

Renaissance The Renaissance ( , ) , from , with the same meanings. is a period in European history marking the transition from the Middle Ages to modernity and covering the 15th and 16th centuries, characterized by an effort to revive and surpass ideas ...

into

Rome , established_title = Founded , established_date = 753 BC , founder = King Romulus (legendary) , image_map = Map of comune of Rome (metropolitan city of Capital Rome, region Lazio, Italy).svg , map_caption ...

with the first masterpieces of the city's new artistic age. Sixtus founded the

Spanish Inquisition The Tribunal of the Holy Office of the Inquisition ( es, Tribunal del Santo Oficio de la Inquisición), commonly known as the Spanish Inquisition ( es, Inquisición española), was established in 1478 by the Catholic Monarchs, King Ferdinand ...

through the bull ''Exigit sincerae devotionis affectus'' (1478), and he annulled the decrees of the

Council of Constance The Council of Constance was a 15th-century ecumenical council recognized by the Catholic Church, held from 1414 to 1418 in the Bishopric of Constance in present-day Germany. The council ended the Western Schism by deposing or accepting the res ...

. He was noted for his nepotism and was personally involved in the infamous Pazzi conspiracy.

Early life

Francesco was born to a family of modest means from

Liguria Liguria (; lij, Ligûria ; french: Ligurie) is a Regions of Italy, region of north-western Italy; its Capital city, capital is Genoa. Its territory is crossed by the Alps and the Apennine Mountains, Apennines Mountain chain, mountain range and is ...

Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical re ...

, the son of Leonardo

della Rovere The House of Della Rovere (; literally "of the oak tree") was a noble family Nobility is a social class found in many societies that have an aristocracy. It is normally ranked immediately below royalty. Nobility has often been an estat ...

and Luchina Monleoni. He was born in Celle Ligure, a town near

Savona Savona (; lij, Sann-a ) is a seaport and ''comune'' in the west part of the northern Italy, Italian region of Liguria, capital of the Province of Savona, in the Riviera di Ponente on the Mediterranean Sea. Savona used to be one of the chie ...

. As a young man, Della Rovere joined the

Franciscan Order , image = FrancescoCoA PioM.svg , image_size = 200px , caption = A cross, Christ's arm and Saint Francis's arm, a universal symbol of the Franciscans , abbreviation = OFM , predecessor = , ...

, an unlikely choice for a political career, and his intellectual qualities were revealed while he was studying

philosophy Philosophy (from , ) is the systematized study of general and fundamental questions, such as those about existence, reason, knowledge, values, mind, and language. Such questions are often posed as problems to be studied or resolved. Some ...

and

theology Theology is the systematic study of the nature of the divine and, more broadly, of religious belief. It is taught as an academic discipline, typically in universities and seminaries. It occupies itself with the unique content of analyzing the ...

at the

University of Pavia The University of Pavia ( it, Università degli Studi di Pavia, UNIPV or ''Università di Pavia''; la, Alma Ticinensis Universitas) is a university located in Pavia, Lombardy, Italy. There was evidence of teaching as early as 1361, making it one ...

. He went on to lecture at Padua and many other Italian universities. In 1464, Della Rovere was elected

Minister General of the Franciscan order Minister General is the term used for the leader or Superior General of the different branches of the Order of Friars Minor. It is a term exclusive to them, and comes directly from its founder, St. Francis of Assisi. He chose this word over "Super ...

at the age of 50. In 1467, he was appointed

Cardinal Cardinal or The Cardinal may refer to: Animals * Cardinal (bird) or Cardinalidae, a family of North and South American birds **''Cardinalis'', genus of cardinal in the family Cardinalidae **''Cardinalis cardinalis'', or northern cardinal, the ...

Pope Paul II Pope Paul II ( la, Paulus II; it, Paolo II; 23 February 1417 – 26 July 1471), born Pietro Barbo, was head of the Catholic Church and ruler of the Papal States from 30 August 1464 to his death in July 1471. When his maternal uncle Eugene IV ...

with the

titular church In the Catholic Church, a titular church is a church in Rome that is assigned to a member of the clergy who is created a cardinal. These are Catholic churches in the city, within the jurisdiction of the Diocese of Rome, that serve as honorary de ...

being the

Basilica of San Pietro in Vincoli San Pietro in Vincoli (; Saint Peter in Chains) is a Roman Catholic titular church and minor basilica in Rome, Italy, best known for being the home of Michelangelo's statue of Moses, part of the tomb of Pope Julius II. The '' Titulus S. Petr ...

. Before his papal election, Cardinal della Rovere was renowned for his unworldliness and had written learned treatises, including ''On the Blood of Christ'' and ''On the Power of God''. His reputation for piety was one of the deciding factors that prompted the

College of Cardinals The College of Cardinals, or more formally the Sacred College of Cardinals, is the body of all cardinals of the Catholic Church. its current membership is , of whom are eligible to vote in a conclave to elect a new pope. Cardinals are appoi ...

to elect him Pope upon the unexpected death of Paul II at the age of fifty-four.

Papacy

Upon being elected Pope, Della Rovere adopted the name Sixtus, which had not been used since the 5th century. One of his first acts was to declare a renewed

crusade The Crusades were a series of religious wars initiated, supported, and sometimes directed by the Latin Church in the medieval period. The best known of these Crusades are those to the Holy Land in the period between 1095 and 1291 that were i ...

against the

Ottoman Turks The Ottoman Turks ( tr, Osmanlı Türkleri), were the Turkic founding and sociopolitically the most dominant ethnic group of the Ottoman Empire ( 1299/1302–1922). Reliable information about the early history of Ottoman Turks remains scarce, ...

Smyrna Smyrna ( ; grc, Σμύρνη, Smýrnē, or , ) was a Greek city located at a strategic point on the Aegean coast of Anatolia. Due to its advantageous port conditions, its ease of defence, and its good inland connections, Smyrna rose to promi ...

. However, after the conquest of Smyrna, the fleet disbanded."Sisto IV (1414–1484)", Palazzo-Medici Riccardi
Some fruitless attempts were made towards unification with the

Greek Church The term Greek Orthodox Church (Greek: Ἑλληνορθόδοξη Ἐκκλησία, ''Ellinorthódoxi Ekklisía'', ) has two meanings. The broader meaning designates "the entire body of Orthodox (Chalcedonian) Christianity, sometimes also call ...

. For the remainder of his pontificate, Sixtus turned to temporal issues and dynastic considerations.

Nepotism

Sixtus IV sought to strengthen his position by surrounding himself with relatives and friends. In the fresco by

Melozzo da Forlì Melozzo da Forlì (c. 1438 – 8 November 1494) was an Italian Renaissance painter and architect. His fresco paintings are notable for the use of foreshortening. He was the most important member of the Forlì painting school. Biography M ...

, he is accompanied by his

Della Rovere The House of Della Rovere (; literally "of the oak tree") was a noble family Nobility is a social class found in many societies that have an aristocracy. It is normally ranked immediately below royalty. Nobility has often been an estat ...

and

Riario The House of Riario, sometimes referred to as Riario-Sforza is an Italian noble family from Savona, near Genoa. Closely associated with the Papal States, the family gained control over several ''signoria, signorie'' ("''lordships''"), such as Bolo ...

nephews, not all of whom were made cardinals; the

protonotary apostolic In the Roman Catholic Church, protonotary apostolic (PA; Latin: ''protonotarius apostolicus'') is the title for a member of the highest non-episcopal college of prelates in the Roman Curia or, outside Rome, an honorary prelate on whom the pop ...

Pietro Riario Pietro Riario (1445 – 3 January 1474) was an Italian cardinal and Papal diplomat. Biography Born in Savona, he was the son of Paolo Riario and Pope Sixtus IVs' sister, Bianca Della Rovere. Sixtus nominated him in 1471 bishop of Treviso and card ...

(on his right), the future Pope

Julius II Pope Julius II ( la, Iulius II; it, Giulio II; born Giuliano della Rovere; 5 December 144321 February 1513) was head of the Catholic Church and ruler of the Papal States from 1503 to his death in February 1513. Nicknamed the Warrior Pope or the ...

/ Giuliano Della Rovere standing before him; and

Girolamo Riario Girolamo Riario (1443 – 14 April 1488) was Lord of Imola (from 1473) and Forlì (from 1480). He served as Captain General of the Church under his uncle Pope Sixtus IV. He took part in the 1478 Pazzi conspiracy against the Medici, and was assas ...

and

Giovanni della Rovere Giovanni della Rovere (1457 – November 1501) was an Italian condottiero. He was a nephew of Pope Sixtus IV, and the brother of Giuliano della Rovere (1443–1513), Pope Julius II from 1503. Biography Giovanni della Rovere was born at Savon ...

, behind the kneeling

Platina Platina is a municipality ''( município)'' in the state of São Paulo in Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and ...

, author of the first

humanist Humanism is a philosophical stance that emphasizes the individual and social potential and agency of human beings. It considers human beings the starting point for serious moral and philosophical inquiry. The meaning of the term "humani ...

history of the popes. His nephew,

, also benefited from his nepotism. Pietro became one of the richest men in

and was entrusted with Pope Sixtus' foreign policy. However, Pietro died prematurely in 1474, and his role passed to Giuliano Della Rovere. The secular fortunes of the Della Rovere family began when Sixtus invested his nephew

Giovanni Giovanni may refer to: * Giovanni (name), an Italian male given name and surname * Giovanni (meteorology), a Web interface for users to analyze NASA's gridded data * ''Don Giovanni'', a 1787 opera by Wolfgang Amadeus Mozart, based on the legend of ...

with the lordship of

Senigallia Senigallia (or Sinigaglia in Old Italian, Romagnol: ''S’nigaja'') is a ''comune'' and port town on Italy's Adriatic coast. It is situated in the province of Ancona in the Marche region and lies approximately 30 kilometers north-west of the pro ...

and arranged his marriage to the daughter of

Federico III da Montefeltro Federico da Montefeltro, also known as Federico III da Montefeltro KG (7 June 1422 – 10 September 1482), was one of the most successful mercenary captains (''condottieri'') of the Italian Renaissance, and lord of Urbino from 1444 (as Duke fr ...

, duke of

Urbino Urbino ( ; ; Romagnol: ''Urbìn'') is a walled city in the Marche region of Italy, south-west of Pesaro, a World Heritage Site notable for a remarkable historical legacy of independent Renaissance culture, especially under the patronage of ...

; from that union came a line of Della Rovere dukes of Urbino that lasted until the line expired, in 1631. Six of the thirty-four cardinals that he created were his nephews. In his territorial aggrandizement of the

, his niece's son, Cardinal

Raffaele Riario Raffaele Sansoni Galeoti Riario (3 May 1461 – 9 July 1521) was an Italian Cardinal of the Renaissance, mainly known as the constructor of the Palazzo della Cancelleria and the person who invited Michelangelo to Rome. He was a patron of the ...

(for whom the

Palazzo della Cancelleria The Palazzo della Cancelleria (Palace of the Chancellery, referring to the former Apostolic Chancery of the Pope) is a Renaissance palace in Rome, Italy, situated between the present Corso Vittorio Emanuele II and the Campo de' Fiori, in the rione ...

was constructed) was suspected of colluding in the failed Pazzi conspiracy of 1478 to assassinate both

Lorenzo de' Medici Lorenzo di Piero de' Medici (; 1 January 1449 – 8 April 1492) was an Italian statesman, banker, ''de facto'' ruler of the Florentine Republic and the most powerful and enthusiastic patron of Renaissance culture in Italy. Also known as Lorenzo ...

and his brother

Giuliano People with the Italian given name or surname Giuliano () have included: In arts and entertainment Surname * Geoffrey Giuliano, American author * Maurizio Giuliano, writer and Guinness-record-holding traveler Given name * Giuliano Gemma, actor ...

and replace them in

Florence Florence ( ; it, Firenze ) is a city in Central Italy and the capital city of the Tuscany region. It is the most populated city in Tuscany, with 383,083 inhabitants in 2016, and over 1,520,000 in its metropolitan area.Bilancio demografico an ...

with Sixtus IV's other nephew,

. Francesco Salviati,

Archbishop of Pisa The Archdiocese of Pisa ( la, Archidioecesis Pisana) is a metropolitan see of the Catholic Church in Pisa, Italy.717,_Pisan.html" ;"title="708, Pisan); on 30–31 July 1716 708,_Pisan);_on_30–31_July_1716_[1717,_Pisan_and_on_31_J_...

_and_a_main_organizer_of_the_plot,_was_hanged_on_the_walls_of_the_Florentine_

708,_Pisan);_on_30–31_July_1716_[1717,_Pisan_and_on_31_J_...

_and_a_main_organizer_of_the_plot,_was_hanged_on_the_walls_of_the_Florentine_Palazzo_della_Signoria">717,_Pisan">708,_Pisan);_on_30–31_July_1716_[1717,_Pisan_and_on_31_J_...