Lateran Settlement & Sovereign Microstate

The temporal realm of the papacy and the sovereign Vatican.

1 chapter

1870 - 1929

Italian Unification extinguished the Papal States. On 20 September 1870, Italian troops entered Rome through Porta Pia; Pope Pius IX refused to recognize the new status quo, declaring himself a 'prisoner of the Vatican.' For 59 years (1870–1929), no pope left the Apostolic Palace or set foot in St. Peter's Square. Urbi et Orbi blessings were given from an interior balcony rather than the external loggia; papal coronations moved from St. Peter's to the Sistine Chapel; the Vatican became a sealed space of liturgical continuity under political siege. This self-confinement reshaped how Vatican festivals were physically enacted: the same liturgical calendar continued, but the sovereign, public, outdoor dimension of papal celebration was suppressed. The stand-off ended only with the Lateran Treaty of 11 February 1929. Walk through the Apostolic Palace's state apartments and sense how these rooms, designed for diplomatic reception, became instead the entire world of a self-enclosed papacy.

1962 - 2021

Vatican II and its liturgical reform constitute the most decisive rupture in Vatican festival practice since the Tridentine codification. Sacrosanctum Concilium (4 December 1963) mandated reform of the liturgical year; Mysterii Paschalis (14 February 1969) promulgated the General Roman Calendar of 1969, suppressing Septuagesima and the Octave of Pentecost, removing approximately 200 saints from the universal calendar, and replacing the Double/Semidouble/Simple ranking with Solemnity/Feast/Memorial/Optional Memorial. The reform created a dual-calendar reality: the 1962 Extraordinary Form and the 1969 Ordinary Form now coexist in the same physical spaces at the Vatican, meaning a festival observed under one form may not exist under the other. Benedict XVI's Summorum Pontificum (2007) liberalized the Extraordinary Form; Francis's Traditionis Custodes (16 July 2021) restricted it. The Paul VI Audience Hall (Aula Paolo VI, built 1971 by Pier Luigi Nervi) became the primary indoor venue for general audiences and major liturgies, physically embodying the post-conciliar shift toward accessibility and scale. Stand in St. Peter's Basilica and realize: two liturgical calendars are potentially being celebrated here in the same space, by the same community, on different schedules.

1527 - 1870

Counter-Reformation institutional codification was forged in crisis. On 6 May 1527, Imperial troops sacked Rome; 147 of 189 Swiss Guards died defending Pope Clement VII, who escaped through the Passetto di Borgo to Castel Sant'Angelo. This event—the Sacco di Roma—became the permanent calendar anchor for the Swiss Guard's annual swearing-in ceremony, the most distinctly Vatican-specific festival in existence. The Council of Trent (1545–1563) and the Tridentine Missal of Pius V (1568–1570) codified the Roman Rite's liturgical calendar, fixing the feast-day rankings (Double, Semidouble, Simple) that governed Vatican celebrations for four centuries. Pope Pius V also built the Swiss Guard chapel of Santi Martino e Sebastiano degli Svizzeri (1568). Sixtus V moved the ancient obelisk from its original circus position to the center of St. Peter's Square (1586), physically recentering the pagan monument as a Christian focal point. The new St. Peter's Basilica was consecrated on 18 November 1626 by Urban VIII—the date still commemorated as the Feast of the Dedication of the Basilicas of Sts. Peter and Paul.

From 2021

The contemporary Vatican is defined by the tension between liturgical continuity and reform, between the universal Church's global reach and this specific place's layered memory. Traditionis Custodes (16 July 2021) restricted the Extraordinary Form, intensifying the dual-calendar conflict that has shaped Vatican liturgical life since 1969. Pope Francis's death on 21 April 2025 and funeral in St. Peter's Square on 26 April 2025—attended by over 200,000 people—demonstrated the enduring power of this site as a ritual focal point for the global Church. Francis broke with centuries of papal burial tradition, choosing interment at Santa Maria Maggiore rather than the Vatican Grottoes. Pope Leo XIV, elected in the 2025 conclave, addressed the Swiss Guard at their May 6 ceremony in the Aula Paolo VI. Today you can experience the Vatican's layered festival life directly: stand in St. Peter's Square at the center of Christian pilgrimage where the ancient obelisk marks the spina of a pagan circus; attend a general audience in the Paul VI Hall; or, if you have special access, witness the Swiss Guard's May 6 oath ceremony in the San Damaso Courtyard—the single most Vatican-specific ritual still enacted annually, preserving 500 years of living memory.