🇻🇦 Holy See (Vatican City)

After Agrippina the Elder drained the marshy Ager Vaticanus and laid out gardens, her son Caligula built a circus there, later completed by Nero. Caligula also brought the obelisk from Heliopolis that still stands in St Peter's Square.

Following the fire of AD 64 many Christians were executed in the circus on the Vatican Hill. Tradition holds that Saint Peter was crucified there, establishing the site's sanctity and the later basilica.

The basilica was raised over a cemetery beside the circus, on the spot believed to hold Saint Peter's grave. From then on the Vatican area became populated in connection with pilgrimage and worship at the basilica.

During the pontificate of Symmachus (498–514) a palace was built near the basilica. It marked the earliest institutional papal presence on the Vatican Hill, although the Lateran remained the habitual residence.

The origin of the Papal States may be traced to the mid-750s, and for more than a thousand years the popes governed a large portion of central Italy as secular sovereigns. This temporal sovereignty gave the papacy the standing of a territorial power in European politics until the territory was seized by the newly created Kingdom of Italy in 1870.

The sacking of the basilica in 846 prompted the enclosure of the Vatican area within defensive walls. The Leonine Wall made the outcrop across the Tiber a defensible papal enclave and shaped the later boundaries of the state.

Mutual excommunications between the pope in Rome and the patriarch of Constantinople formalised a long-building rift over doctrine and authority. The division created the separate Catholic and Eastern Orthodox traditions that persist today.

Nicholas III shifted his residence from the Lateran Palace to the Vatican and enclosed the district with walls. This consolidated the Vatican as the seat of papal government and residence.

Pope Clement V moved the papal court to Avignon amid political turmoil in Italy and pressure from the French crown, and the papacy remained based there for close to seventy years; later critics likened the period to the Babylonian captivity of the Jews. On returning to Rome the popes chose to live at the Vatican rather than the Lateran Palace, fixing the location that would later become the city-state.

Established on 22 January 1506, the Guard has continued to protect the pope without interruption. It survived the 1970 disbandment of the other papal corps and remains the state's only military body, recruiting unmarried Swiss Catholic men trained in the Swiss Armed Forces.

Successive sixteenth- and seventeenth-century popes replaced and extended the earlier Leonine defences with modern fortifications. The loop of these walls later determined the boundaries agreed in the Lateran Treaty.

The council, which met in sessions until 1563, defined Catholic doctrine in response to the Protestant Reformation and launched a programme of internal reform known as the Counter-Reformation. Its decisions shaped Catholic practice for the next four centuries.

From 1583 the papal court used the Quirinal, with work on it completed under Paul V. It remained a papal residence until the capture of Rome, after which it was taken over by the King of Italy.

The obelisk, the last remnant of the Circus of Nero, was moved using a method devised by the architect Domenico Fontana. The engineering feat became a celebrated demonstration of Renaissance technical capability in papal service.

The press gave the Holy See its own capacity to publish and disseminate documents. It remains among the communication institutions of the Vatican, later joined by the Vatican Publishing House founded in 1926.

The academy institutionalised scientific enquiry under papal patronage. It was the direct forerunner of the Pontifical Academy of Sciences established in 1936.

An 1848 statute of the Kingdom of Sardinia established Catholic Christianity as the state religion, a status inherited by unified Italy. It was reaffirmed by the Lateran Treaty and only modified by the 1984 concordat.

In the mid-19th century, during Italian unification, most of the Papal States were absorbed by the new Kingdom of Italy, sharply reducing the pope's temporal domain.

The city fell on 20 September 1870, completing Italian unification and stripping the papacy of the territory it had ruled for over a thousand years. Pope Pius IX refused to recognise the new Italian state and described himself as a prisoner in the Vatican.

The Quirinal became the royal palace while the popes withdrew within the Vatican walls. The Law of Guarantees recognised certain papal prerogatives, including the right to send and receive ambassadors, though the popes rejected the settlement until 1929.

Signed on 11 February 1929 by Benito Mussolini for Victor Emmanuel III and Cardinal Pietro Gasparri for Pius XI, and effective 7 June 1929, the Lateran Treaty ended almost 60 years of dispute known as the Roman Question and established the independent Vatican City State, restoring a territorial base to papal sovereignty. It reaffirmed the special status of Catholicism in Italy, and Italy also paid compensation for the loss of the former Papal States.

The postal service was established on 13 February 1929, two days after the Lateran Treaty. It was one of the first practical instruments of the new state's administrative independence.

The station's first broadcast, on 12 February 1931, made Pius XI the first pope to address the world by radio. It gave the Holy See an independent means of communication two years after the Vatican City State was created.

Building on the Pontifical Academy of New Lincei of 1847, Pius XI created a formal scientific academy of the Holy See. It gave the Vatican a standing institution for engagement with international science.

Remains beneath St Peter's had been found repeatedly over the centuries, but excavation was organised methodically on Pius XII's order. The work documented the pre-Christian cemetery and the traditional site of Peter's tomb.

Both Axis and Allied belligerents respected Vatican City's neutral status, including during the German occupation of Rome after the September 1943 Armistice of Cassibile and the Allied recapture in 1944. Neutrality preserved the new state's territorial integrity and diplomatic reach.

With origins in the early nineteenth century, the corps was reconstituted in 1941. It now numbers 130 personnel within the Directorate for Security Services and Civil Defence of the Governorate.

The raid of 19 July 1943 targeted the city's railway hub; Pius XII, who had made preventing the bombing of Rome a diplomatic priority, toured the affected areas. A further raid followed on 13 August, and the new Italian government declared Rome an open city the next day after consulting the Holy See.

Having refrained from making cardinals during the war, Pius XII filled prominent vacancies including Secretary of State, Camerlengo and Chancellor. The mass creation restored the functioning of the central government of the Church.

From 1952 the president of the Pontifical Commission for Vatican City State exercised the powers previously belonging to the Governor of Vatican City. The office became the de facto head of government of the state.

The council, which ran until 1965 under John XXIII and his successor Paul VI, modernised Catholic liturgy and doctrine and reshaped the Church's relations with other faiths and the modern world. Mass could thereafter be celebrated in local languages rather than only Latin.

Although Vatican City is not a UN member, the Holy See obtained observer status in 1968 and engages with UN specialised agencies. This gave the Holy See a formal platform in the multilateral system without membership obligations.

Positions such as Quartermaster general and Master of the Horse were suppressed. The reform stripped the papal household of surviving princely-court structures.

On 4 July 2026 the pope laid a wreath for migrants who drowned trying to reach Europe and celebrated an open-air Mass on the island, a key arrival point for crossings from North Africa. He urged European states to do more to protect and integrate migrants.

Signed in July 2025, the deal converts a 430-hectare rural site north of Rome into a solar farm intended to help make Vatican City carbon-neutral. It took effect on 27 May 2026.

The Vatican Bank's 2025 net profit rose 55.5 per cent to 51 million euros, driven by higher net banking income and favourable markets, according to its annual report published on 11 May 2026. The Commission of Cardinals approved a dividend of 24.3 million euros to the pope.

The eleven-day journey from 13 to 23 April 2026 also took in Cameroon, Angola and Equatorial Guinea, covering some 18,000 kilometres across 18 flights. The pope's addresses focused on peace, migration, the environment and young people.

The rite at St Peter's Basilica on 6 January 2026 concluded the Holy Year that Pope Francis had opened in December 2024 and that drew millions of pilgrims to Rome. It was among the first major ceremonies Leo XIV presided over as pope.

In his annual address to the diplomatic corps, the pope said he was following developments in Venezuela with deep concern, days after a US special forces operation captured President Nicolas Maduro on 3 January 2026. The remarks opened a rift with the Trump administration over Vatican criticism of American foreign policy.

The objects, handed to the Canadian Conference of Catholic Bishops on 15 November 2025, had been held in the Vatican's Anima Mundi museum. The restitution was presented as part of the Church's reckoning with its colonial-era history.

The change, made on 21 November 2025, removed a requirement that the president of the Pontifical Commission hold the rank of cardinal, a post always held by a man. A nun, Sister Raffaella Petrini, had already been appointed to the role earlier in the year.

The service on 23 October 2025 was the first joint prayer between a British monarch and a pope since 1534, when Henry VIII broke with Rome. It took place during a state visit marking closer ties between the Church of England and the Holy See.

Vatican prosecutors had sought to overturn the acquittal of Becciu and nine others accused of embezzling 350 million euros in church funds, a case seen as a test of the Holy See's financial-crime reforms. The tribunal's decision on 25 September 2025 closed the appeal process.

Robert Francis Prevost, a Chicago-born cardinal who had spent much of his career as a missionary bishop in Peru, was elected pope on 8 May 2025 following the death of Pope Francis on 21 April, taking the name Leo XIV and becoming the first American to hold the office as head of state of Vatican City and of the Catholic Church. His election broke a longstanding assumption that an American would never be chosen pope; the following day he reconfirmed Raffaella Petrini as president of the Governorate.

Appointed on 1 March 2025 as president of the Pontifical Commission and Governorate of Vatican City State, the Italian sister became the state's de facto head of government. She was reconfirmed by Pope Leo XIV on 9 May 2025.

The 2024 figure makes it the smallest sovereign state by population as well as area, and the only country with fewer than 1,000 inhabitants. A further 372 Vatican citizens live abroad as diplomats or as cardinals resident in Rome.

The record was set on 28 June 2022. It illustrated the warming trend affecting the Roman climate in which the microstate sits.

The Holy See announced intentions to issue non-fungible tokens representing works from its museums. It signalled experimentation with digital means of extending access to the Vatican collections.

The state said it would prohibit the use and sale of single-use plastics once existing supplies ran out. The move anticipated the European Union's 2021 deadline.

Vatican News, L'Osservatore Romano, Vatican Radio and Vatican Media were brought under a single body. It became the sole reference point for Holy See communication, consolidating a global information capability.

The new body was made responsible for all economic, financial and administrative activity of the Holy See and Vatican City State. Pope Francis also appointed an auditor-general and commissioned a review of some 19,000 Vatican accounts for money-laundering compliance.

The 2013 motu proprio on the jurisdiction of judicial authorities in criminal matters clarified the powers of the Supreme Court, Court of Appeal, Tribunal and Sole Judge. It formed part of the alignment of Vatican law with international standards.

Citing declining strength, Benedict stepped down on 28 February 2013. The conclave that followed elected Jorge Mario Bergoglio of Argentina, who took the name Francis and became the first pope from the Americas and the first Jesuit to hold the office.

The International Narcotics Control Strategy Report named Vatican City for the first time, placing it in the middle risk category. The listing pressed the Holy See towards financial transparency reforms.

The rooftop photovoltaic installation was the state's most visible renewable energy investment. It accompanied an 'ecological island' for renewable waste begun the same year and continued under Francis.

Two firms based in San Francisco and Budapest proposed offsetting Vatican carbon dioxide emissions through a Vatican Climate Forest in Hungary. The largely symbolic gesture was intended to encourage Catholics worldwide to protect the environment.

The state, employing nearly 2,000 people, recorded a surplus in 2007 and a substantial deficit the following year. The reversal highlighted the fragility of the microstate's finances.

Present concerns include religious freedom, threats against minority Christian communities in Africa and the Middle East, sexual misconduct by clergy, international development, interreligious dialogue and reconciliation, and the application of church doctrine in an era of rapid change and globalisation. About 1.2 billion people worldwide profess Catholicism, the world's largest Christian faith.

The Vatican began using the euro as its currency in January 1999, with coins and notes introduced on 1 January 2002. It issues euro coins but not banknotes, tying the microstate's monetary affairs to the eurozone.

Critics backed by Italian politicians claimed the building beside St Peter's Basilica would block views from nearby apartments, briefly straining Vatican–Italian relations. Vatican technical services rejected the challenge, asserting the state's sovereign right to build within its borders.

The Vatican is the only World Heritage Site consisting of an entire state. Its territory is also the only UNESCO site listed in the International Register of Cultural Property under Special Protection under the 1954 Hague Convention.

The 1984 agreement modified provisions of the 1929 treaty, notably ending Catholicism's position as the Italian state religion granted by an 1848 Sardinian statute. It redefined church–state relations in modern, non-confessional terms.

A large part of the historical documents of the Vatican Apostolic Archive was moved into the purpose-built secure repository. It safeguarded one of the world's most extensive documentary collections.

The Polish cardinal's election on 16 October 1978 came in the same year as the sudden death of his predecessor, John Paul I, after 33 days in office. He went on to serve almost 27 years, one of the longest pontificates in history.

The Palatine Guard and Noble Guard, the last armed forces of the state, were dissolved and the Gendarmerie Corps was converted into a civilian police and security force. Vatican defence was thereafter limited to the Swiss Guard and policing.