The Alternative Pope Project

The Alternative Pope Project

In 2015, I started the Alternative Pope Project. The goal was to identify and study individuals who, during the 20th and 21st centuries, claimed that they, and not the more well-known figure in Rome, were the true leader of the Catholic Church. To refer to them, I coined the term alternative popes.

I soon realized that it would be difficult to find sources about many of the claimants, as little material is found in research libraries. To solve the problem, I created this website. Initially, I wrote brief posts on the papal claimants I knew, asking for more information.

I was amazed by the feedback. Over the past almost ten years, several thousand people have contacted me.  Many have asked questions, wanting to know more, and many have helped me access source material or shared their experiences as (former) members of these groups. With their help, I have been able to amass considerable material, and I have been able to publish several more substantial texts that, in their turn, have led to new contacts and even more sources.

This project’s final outcome will be a sizeable monograph: Could the True Pope Please Stand Up: 20th and 21st-Century Alternative Popes. Hopefully, I will be able to finish it in 2026, thus ending a decade-long project.

To date, I have produced five monographs, five group profiles, and more than a dozen research reports listed below. I have also published ca. 50 blog posts, including brief studies on alternative popes and scanned sources.

Continue reading “The Alternative Pope Project”

Images of the Celestial Messenger. Part 7.

Images of the Celestial Messenger. Part 7.

This is the seventh and last part of the series of images from the archives of Italian-American Giuseppe Maria Abbate (1886-1963), the Celestial Messenger, who claimed to be divine. For more pictures and studies, see the Celestial Messenger page.

The focus of Abbate’s Church, the New Jerusalem Church, was his claims of divine status and his role in salvation history. From the early 1910s, he was known as the Celestial Messenger. Later, his title became Padre Celeste. Still, he also referred to himself as the Universal Protector, St. Michael the Archangel rehumanated, the Prince of Peace, God’s Vicar on Earth, and the Celestial King. Thus, Abbate claimed to be something of a combination of a pope, an archangel, a prophet, a king, and God incarnate.

In his interpretation, each first letter in his full name and title, “Giuseppe Maria Abbate di Carmelo, Padre Celeste”, had a symbolic meaning in Italian, summarizing his mission on earth. In English translation, it was: Jesus, Incarnate, Made Human, Most Holy Immanuel, Eternal Prince of Peace, sent to be reincarnated in Abbate to Bless Everybody Eternally. Divinity Incarnate. Celestial Angel, King, Immanuel, the Messiah Arrived, the Ordained Angel. The Door to God. Elected Religious. Christ, Immanuel, Eternal Light, the Sound of the Seventh Trumpet.

While he believed he possessed supernatural powers already from the beginning of the 1910s, in 1923, Abbate claimed that Christ had appeared to him, showing him the transformation of a caterpillar into a butterfly. From that moment, Abbate was convinced that he was “Jesus rehumanated.” His face was the true face of Christ in the modern era. At the same time, Abbate began to claim that he had lived on Mars before coming to Earth in 1886.

Continue reading “Images of the Celestial Messenger. Part 7.”

Images of the Celestial Messenger. Part 6.

Images of the Celestial Messenger. Part 6.

This is the sixth part of my series of images of Giuseppe Maria Abbate (1886-1963), the Italian-American Celestial Messenger. See part 1, part 2, part 3, part 4, and part 5. It includes photos of objects found in my collection related to Abbate and his New Jerusalem Catholic Church. These objects include a trumpet, two processional swords, and a box containing relics (mainly hair, beard, and nail clippings).

Continue reading “Images of the Celestial Messenger. Part 6.”

Images of the Celestial Messenger. Part 5.

Images of the Celestial Messenger. Part 5.

This is the fifth part of my series of images of Giuseppe Maria Abbate (1886-1963), the Italian-American Celestial Messenger. They are part of my collection of documents related to Abbate and his New Jerusalem Catholic Church. See part 1, part 2, part 3, and part 4.

Most of the photos in the collection depict the Celestial Messenger, the Reincarnated Virgin Mary, and religious ceremonies or objects related to them. Copies of these pictures were held by Church members and were also part of Abbate’s missionary activities, distributed to potential adherents. Some were also printed in the Church’s newspaper, L’Araldo, published between 1926 and 1928, as well as in brochures and booklets.

However, the collection also includes other photos documenting members, both individuals and groups. There are, e.g., pictures of the Celestial Messenger’s honorary guard, members of the girls’ and boys’ groups, nuns, religious brothers, and ordinary faithful.

Continue reading “Images of the Celestial Messenger. Part 5.”

Images of the Celestial Messenger. Part 3.

Images of the Celestial Messenger. Part 3.

This post is the third part of my series of images of Giuseppe Maria Abbate (1886-1963), the Italian-American Celestial Messenger. They are part of my collection of documents related to Abbate and his Church. See part one and part two.

The focus of the New Jerusalem Church doctrine was Abbate’s claims of divine status and his role in salvation history. By the late 1910s, Abbate called himself Giuseppe Maria di Carmelo Abbate. When the Church was founded, he was referred to as Celestial Messenger (Messaggiero Celeste).

Later, his title became Padre Celeste. Still, he also referred to himself as the Universal Protector, St. Michael the Archangel, the Prince of Peace, God’s Vicar on Earth, and the Celestial King. Thus, Abbate claimed to be something of a combination of a pope, an archangel, a prophet, a king, and God incarnate.

Continue reading “Images of the Celestial Messenger. Part 3.”

Images of the Celestial Messenger. Part 2.

Images of the Celestial Messenger. Part 2.

This post is the second part of my series of images of Giuseppe Maria Abbate (1886-1963), the Italian-American Celestial Messenger. They are part of my collection of documents related to Abbate and his Church. See part one.


In 1917, Abbate founded a formal church organization. It was called La Chiesa Cattolica di Nuova Gerusalemme del Messaggiero Celeste (the New Jerusalem Catholic Church of the Celestial Messenger). In Italian, the word is usually spelled “messagero,” but, for some reason, the Church always used “messagiero.” At about the same time, Abbate also established a male religious order, the Order of the Celestial Messenger.

Continue reading “Images of the Celestial Messenger. Part 2.”

Images of the Celestial Messenger. Part 1.

Images of the Celestial Messenger. Part 1.

Giuseppe Maria Abbate (1886-1963) was the founder and leader of the New Jerusalem Church of the Celestial Messenger, based in Chicago. He was also God. In 2018, I co-authored a book about him. A few years later, I wrote a group profile for the World Religions and Spirituality Project, summarizing Abbate’s and his Church’s history and beliefs. At the time, we thought the Church’s archives had been destroyed in the early 1990s and had to rely mainly on secondary sources, including press material.

However, in 2021, something remarkable happened. I was contacted by a Chicago antique dealer who had bought a bulk of strange papers and objects as part of an estate. It proved to be a central part of Abbate’s archive! Some 100 kilos of material. The collection had been hidden away in a garage for about three decades. With the help of the Department of Theology at Uppsala University, I acquired the collection.

The discovery of the archive enables the study of the history of the Celestial Messenger and the detailed analysis of his theology and the religious practices of his Church. This is an ongoing project, and the results will be published in specialized works. However, here and in a series of posts that follow, I will briefly introduce the biography and ministry of the Celestial Messenger through a selection of the many images and photos that the Church distributed to members and potential followers.

In this first post, we follow Abbate from his birth in 1886 to the formal organization of his Church in the late 1910s. With time, Abbate’s official biography and self-understanding developed. Through much of the 1910s, he understood himself as a special envoy from heaven or a heavenly being with supernatural powers. However, in the 1920s, he became convinced of his pre-existence: he had lived on Mars before coming to earth. It also became increasingly clear that he believed he was the reincarnated Christ; that he was God. In this text, however, I will not include the elaborated biography presented in later church publications; instead, I will use the version he disseminated in the late 1910s.

Continue reading “Images of the Celestial Messenger. Part 1.”

Är påven katolik?

Är påven katolik?

Mitt syfte med boken Är påven katolik?: Traditionalistiska variationer på ett tema (Uppsala Studies in Church History, vol. 16; 80 sid) är att analysera olika traditionalistiska uppfattningar om huruvida de konciliära och post-konciliära påvarna–Johannes XXIII (1958–1963), Paulus VI (1963–1978), Johannes Paulus I (1978), Johannes Paulus II (1978–2005), Benedikt XVI (2015–2013) och Franciskus (2013–) verkligen varit sanna påvar eller om de har varit ledare för en ny icke-katolsk religion, av traditionalister ibland benämnd konciliereligionen, Novus Ordo-religionen, den vatikanska institutionen eller ”Kyrkan” inom citationstecken.

Det handlar i praktiken framförallt om diskussioner från mitten av 1960-talet till början av 1990-talet om huruvida Johannes XXIII och Paulus VI var motpåvar. För dem som hävdade att så var fallet var det självklart att även deras efterträdare var antipåvar.

Forskningen om merparten av de mer radikala traditionalistiska varianterna och deras syn på påven är begränsad och det finns, såvitt jag vet, ingen så bred och detaljerad översikt som denna på något språk.

Boken är tillgänglig i fulltext här:

A Newly Discovered Collection of Documents from the New Jerusalem Catholic Church of the Celestial Messenger

A Newly Discovered Collection of Documents from the New Jerusalem Catholic Church of the Celestial Messenger

Almost four years ago, I co-authored the book Giuseppe Maria Abbate: The Italian-American Celestial Messenger with James W. Craig. At that time, we believed that essentially all archival material related to Abbate and his New Jerusalem Catholic Church of the Celestial Messenger had been destroyed in the early 1990s.

However, a sizable collection, once part of the church archive, has recently appeared. It includes publications, documents, photos, and objects. Not even the official publications, such as the L’Araldo magazine, are found in any research library I know. Thus, the collection contains unique materials and will serve as a basis for further studies on Abbate and his church. Currently, the archive is stored with me, and I’m preparing an article about the foundation and early development of the church. Hopefully, other studies will follow. In the near future, I will publish a selection of reproductions of photos and pictures of objects from the collection on this website. Below, you will find a few images of the collection before I started organizing it.

Continue reading “A Newly Discovered Collection of Documents from the New Jerusalem Catholic Church of the Celestial Messenger”

New Text on Giuseppe Maria Abbate the Celestial Messenger

New Text on Giuseppe Maria Abbate the Celestial Messenger

The website of the World Religion and Spirituality Project (WRSP), coordinated by Professor David G. Bromley includes updated entries on a growing number of religious group, not least so-called New Religious Movements.

Recently, I finished a WRSP group profile about the New Jerusalem Church of the Celestial Messenger based on the my and James W. Craig’s book Giuseppe Maria Abbate: The Italian-American Celestial Messenger (2018).