Thousands of faithful gathered in the small Alpine village of Écône, in the canton of Valais in southern Switzerland, on Wednesday to witness the ordination of four new bishops by the Society of Saint Pius X (SSPX) — a traditionalist Catholic group that has openly defied Pope Leo XIV's explicit instructions not to proceed. The four men — one American, one Swiss, and two French — were consecrated in a lavish four-hour ceremony conducted entirely in Latin, under a large tent erected in a pasture beside the society's seminary, surrounded by hundreds of robed priests carrying candles and crosses. Under canon law, the act of ordaining bishops without the Pope's approval carries automatic excommunication — the harshest penalty available in the Catholic Church — for both the new bishops and the officiating bishop.

Pope Leo, the first American pope, had sent a last-minute letter to SSPX leaders urging them to stand down, warning that proceeding would constitute a "sin of extreme gravity" and would "tear the seamless garment of Christ." The society's Superior General, Davide Pagliarani, rejected the appeal, declaring from the altar that the ordinations were being carried out "precisely because we love the Pope" and that the group was "ready to pay any price to save the Church." A statement read at the start of the Mass framed the consecrations as a "sacred duty" and dismissed the resulting penalties.

The SSPX was founded in 1970 by French Archbishop Marcel Lefebvre in reaction to the Second Vatican Council (1962–1965), a landmark series of reforms through which the Catholic Church opened itself to the modern world — permitting Mass to be celebrated in local languages rather than Latin, recognising religious freedom, engaging in dialogue with other Christian denominations, and repudiating the antisemitism that had tainted parts of the Church before the Second World War. The SSPX rejects all of these changes and continues to celebrate the older "Tridentine" Mass with the priest facing the altar, his back to the congregation. This is not the first time the society has taken this step: in 1988, also in Écône and also involving four bishops, Lefebvre performed an identical act, leading to excommunications that were only lifted by Pope Benedict XVI in 2009 in an unsuccessful attempt at reconciliation.

Despite its relatively small size — an estimated 600,000 regular faithful compared to Catholicism's 1.4 billion members worldwide — the SSPX operates across dozens of countries, with six bishops, more than 750 priests, and seminaries on multiple continents. Wednesday's event was livestreamed in seven languages on YouTube and bore the hallmarks of a well-resourced organisation: cashless payment wristbands, mobile confessionals, souvenir baseball caps, and gift packs of Swiss wine at $92 each. Attendees included pilgrims from the Philippines, Gabon, and the United States, some drawn by the mystique of the Latin rite, including younger Catholics discovering the Tridentine Mass for the first time.

The episode presents a significant early challenge for Pope Leo, who has made church unity a priority. Analysts note an irony at the heart of the dispute: the progressive centralisation of papal authority over bishop appointments — a process that accelerated during the conservative pontificates of the 19th and early 20th centuries — is the very power the SSPX is now defying, even though the society named itself after one of those conservative popes, Pius X. Beyond the liturgical disagreements, commentators point to a broader cultural dimension: the SSPX's brand of traditional Catholicism has found resonance among sections of the global far right. Whether Pope Leo will respond with formal excommunication — as widely expected — or exercise restraint to avoid deepening the very schism he fears remains to be seen.