Biography.guide
Home › People › Catholic priest › Thaddeus Amat y Brusi
Portrait of Thaddeus Amat y Brusi

Thaddeus Amat y Brusi

1810 – 1878

Catholic Bishop of Los Angeles

Don't just read it — keep itBiographies to ownE-book · Audio · Video From $7 →

About Thaddeus Amat y Brusi

Lived 1810 – 1878 (aged 67). Thaddeus Amat y Brusi was a Spanish catholic priest, missionary and catholic bishop.

Thaddeus Amat y Brusi (Spanish: Tadeu; ; December 31, 1811 – May 12, 1878) was a Spanish Catholic prelate who served as the first Bishop of Monterey–Los Angeles. He was a member of the Vincentians.

Early life Amat was born in Barcelona, Catalonia, Spain on December 31, 1810, to Pedro Amat and Maria Brusi. After earlier studies, he entered the Congregation of the Mission, commonly called the Vincentian Fathers, in 1832. He was ordained a priest of the Congregation on December 23, 1837, in Paris, France, by Hyacinthe-Louis de Quélen, the Archbishop of Paris.

He was sent to the United States as a missionary in Louisiana. He later served as a master of novices for his congregations in Missouri and Pennsylvania.

Bishop On 28 July 1853, while serving as the Rector of St. Charles Borromeo Seminary in Philadelphia, he was appointed the Bishop of Monterey in California. The diocese's previous bishop, Joseph Sadoc Alemany, O.P., had been promoted to archbishop of the newly created Archdiocese of San Francisco.

Amat was consecrated as a bishop in Rome on March 12, 1854, by Cardinal Fransoni, the Prefect of the Sacred Congregation for the Propagation of the Faith. Recognizing the growth of Los Angeles and the decline of Monterey, he petitioned the Holy See to move the see to Los Angeles and to be known as Bishop of Los Angeles.

Amat arrived in the pueblo of Los Angeles in 1855. On July 7, 1859, the diocese was renamed the Diocese of Monterey-Los Angeles. The Co-Cathedral of Saint Vibiana was founded in Los Angeles and consecrated during the episcopacy of Amat. He brought back from Rome the relics of its patron saint, which were interred in a sarcophagus above the cathedral's main altar.

Father Amat traveled to Rome in 1869 to attend the First Vatican Council called upon by Pope Pius IX. On June 28, 1870, Father Amat was an orator during the official mass of the 78th Congregation celebrated in the Vatican.

The Council was interrupted when King Victor Emmanuel II attacked Rome and deposed Pope Pius IX. Pius IX suspended the Council indefinitely on October 20, 1870.

Dispute over the California missions Amat came into conflict with Friar José González Rubio, O.F.M., of the Mission Santa Barbara, over the control of the mission after President Abraham Lincoln returned the California missions to the Catholic Church. The Franciscans claimed, on the basis of both Church law and historical grounds, that the missions were rightfully under their direct jurisdiction and not that of the diocese. Accordingly they claimed that they should hold the deed to Mission Santa Barbara.

Institutions founded Amat founded some of the first schools in Los Angeles and asked his fellow Vincentians to open St. Vincent's College (now known as Loyola Marymount University). It was the first institution of higher learning in Southern California. He welcomed the Franciscan Brothers of Ireland into his diocese to work in the parochial schools, as well as the Daughters of Charity and the Sisters of the Immaculate Heart of Mary.

Amat formally consecrated Calvary Cemetery on North Broadway (formerly Buena Vista Street) at Bishops Road in 1866. The area had been set aside in 1844. The graves in Calvary Cemetery were moved to the present cemetery location to make way for Cathedral High School. He founded the 30-acre Santa Clara Cemetery in Oxnard in 1874. St. Mary's Cemetery (3.69 acres) in San Buenaventura was acquired by Amat in 1862 and blessed in 1884. He dedicated the Gothic Revival brick chapel to Saint Nicholas at the Workman Family Cemetery in the City of Industry.

Death

Amat died on May 12, 1878, at Los Angeles, California, and was succeeded by his coadjutor bishop, Francisco Mora y Borrell, who (like Alemany and Amat) was also Catalan. He was originally buried in the crypt of the co-cathedral in Los Angeles, but, due to earthquake damage, is now buried in the bishop's crypt of the Cathedral of Our Lady of the Angels, which replaced it in 2002.

Bishop Amat Memorial High School in La Puente, California, is named for him and his original tombstone is located at the school's chapel.

Biography shop

Don’t just read it —
keep it.

Full-length biographies made to live with: read them, listen on the way to work, watch them tonight.

  • E-book
  • Audio
  • Video
Browse the shop — from $7

Instant download · yours to keep · every purchase keeps this site free

Important facts

Birth century
Nationality
Positions held
Roman Catholic Bishop of Monterey, Roman Catholic Bishop of Monterey-Los Angeles
Also known as
Tadeu Amat i Brusi, Thaddeus Amat

People in Thaddeus Amat y Brusi's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Thaddeus Amat y Brusi's

Frequently asked questions

Who was Thaddeus Amat y Brusi?

Catholic Bishop of Los Angeles (1810-1878)

When was Thaddeus Amat y Brusi born?

Thaddeus Amat y Brusi was born on 31 December 1810 in Barcelona.

When did Thaddeus Amat y Brusi die?

Thaddeus Amat y Brusi died on 12 May 1878 in Los Angeles.

What was Thaddeus Amat y Brusi's occupation?

Thaddeus Amat y Brusi was a catholic priest, missionary and catholic bishop.

What nationality was Thaddeus Amat y Brusi?

Thaddeus Amat y Brusi was Spanish.

Sources & further reading

· Wikipedia: Thaddeus Amat y Brusi

· Wikidata: Q7708963

· DBpedia: Thaddeus Amat y Brusi

Cite this page

APA: Biography.guide. (2026). Thaddeus Amat y Brusi. https://biography.guide/thaddeus-amat-y-brusi/

MLA: "Thaddeus Amat y Brusi." Biography.guide, https://biography.guide/thaddeus-amat-y-brusi/.

Chicago: "Thaddeus Amat y Brusi." Biography.guide. https://biography.guide/thaddeus-amat-y-brusi/.

Data last updated: 2026-09-22 · Spot an error? Report a correction.

Portrait: Wikimedia Commons · author & licence

Page generated 2026-09-27 05:04 UTC