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Michael Duca
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Michael Duca

Bishop of Baton Rouge
Bishop
1952
1978
Ordained
2008
Consecrated Bishop
Baton Rouge
Diocese
United States
Country
The Life

Michael Gerard Duca was born in Dallas, Texas, in 1952, and is a Dallas priest to the bone: St. Thomas Aquinas School and Bishop Lynch High School, then Holy Trinity Seminary in Irving from 1970 to 1978. He was ordained on April 29, 1978, and served as parochial vicar at All Saints and St. Patrick in Dallas and St. Luke in Irving before the diocese made him its vocations director and chaplain at Southern Methodist University in 1985 - the first of the formator's assignments that would define him.

In 1994 he went to Rome and took a licentiate in canon law at the Angelicum, and on his return in 1996 he became rector of Holy Trinity Seminary, forming Dallas's priests for twelve years. Pope Benedict XVI appointed him the second Bishop of Shreveport on April 1, 2008; he was ordained and installed on May 19, 2008, and governed north Louisiana's small diocese for a decade.

Pope Francis translated him to Baton Rouge on June 26, 2018, and he was installed as its sixth bishop on August 24, 2018, succeeding Robert Muench. A canonist and seminary rector by formation, he has governed Louisiana's capital diocese with a lawyer's steadiness, serving also as a trustee of Notre Dame Seminary in New Orleans and St. Joseph Seminary College in Covington.

Major Works & Initiatives
Rector of Holy Trinity Seminary, Dallas (1996-2008)
Twelve years forming the priests of Dallas - the assignment that made his reputation and led directly to the episcopate.
Permission for St. Agnes to continue the 1962 Missal (2021)
In July 2021, answering Traditionis Custodes, he allowed St. Agnes in Baton Rouge - the diocese's only parish with a scheduled Traditional Latin Mass - to continue offering Mass according to the 1962 Missal; the Mass continues on the parish schedule.
In His Own Words
Controversies
A quiet record on the old Mass
Duca's 2021 permission for St. Agnes was an interim-style allowance rather than a decree, and after Rome's February 2023 rescript reserved parish-church Traditional Latin Masses to the Holy See, the dispensation footing of St. Agnes's continuing parish-church Mass is not publicly documented - a canonical question mark, noted in the research file, over an otherwise uncomplicated preservation.
The Old Mass, See by See
Baton Rouge2018-08-24 – presentKept as it was
1 site → 1 site
What he inheritedAt the promulgation of Traditionis Custodes on 16 July 2021, Baton Rouge had a single scheduled Traditional Latin Mass: St. Agnes parish in Baton Rouge, where Fr. Brent Maher (pastor since September 2020, appointed by Duca) had celebrated a Solemn High Traditional Latin Mass on 28 May 2021, the first at the parish in decades. CNA identified St. Agnes as 'the only parish in the diocese with a scheduled Latin Mass.'
  • 2021-07Duca allowed St. Agnes, the diocese's only parish with a scheduled Latin Mass, to continue offering Mass according to the 1962 Missal (CNA's survey of diocesan responses, as of July 30, 2021). ↗
  • 2023-07-16St. Agnes's parish bulletin still lists a Sunday 9:15 a.m. Latin Mass and a Tuesday 5:30 p.m. Latin Mass - the 2021 permission still in effect two years on, after the February 2023 rescript; the bulletin says 'Latin' without naming the Missal, and the rescript-era dispensation is not publicly documented. ↗
Since the SSPX decree of 2 July 2026: No statement recorded as of 2026-10-23.
Reviewed 2026-10-23Confidence: medium
Domus Dei’s Verdict
The Bishop & the Mass of Ages
Preserved what he inherited

Baton Rouge's old-Mass story is one parish, and Bishop Duca kept it. St. Agnes, in the Garden District, had rebuilt a traditional life under Fr. Brent Maher - a Solemn High Traditional Latin Mass on May 28, 2021, the first at the parish in decades, weeks before the motu proprio landed. When Traditionis Custodes came, CNA recorded the diocese's answer: St. Agnes, 'the only parish in the diocese with a scheduled Latin Mass, has been allowed by Bishop Michael Duca to continue offering Mass according the 1962 Missal.' That permission is an act of his own, dated to July 2021, and it is why his posture reads preserved rather than no_record.

The continuation is documented, not merely inferred: St. Agnes's bulletin of July 16, 2023 - two years after the permission and months after Rome's rescript tightening parish-church celebrations - still lists a Sunday 9:15 a.m. Latin Mass and a Tuesday 5:30 p.m. Latin Mass at the parish. What is not documented is the rescript-era paperwork: whether a Dicastery dispensation underlies the post-2023 continuation is not in the public record reached, and the dossier flags it as debt rather than assuming it. One site before, one site now, kept by his word: a small, real preservation.

References & Further Reading
1.
Most Rev. Michael G. Duca, D.D., J.C.L. — Diocese of Baton Rouge · diobr.org · 2026Diocesan biography: ordained April 29, 1978; appointed Shreveport April 1, 2008, ordained and installed May 19, 2008; appointed Baton Rouge June 26, 2018, 'his installation was on August 24, 2018'; JCL, Angelicum.
2.
Bishop Michael Gerard Duca [Catholic-Hierarchy] — David M. Cheney · catholic-hierarchy.org · 2026CH bishop ID bducam, verified against the Baton Rouge diocese page's bishop link in the project-fetched CH snapshot.
3.
Pope Francis' Traditional Latin Mass restrictions: Has your diocese responded yet? — Catholic News Agency · catholicnewsagency.com · 2021Louisiana section: St. Agnes, 'the only parish in the diocese with a scheduled Latin Mass, has been allowed by Bishop Michael Duca to continue offering Mass according the 1962 Missal.'
4.
History - St. Agnes Catholic Church, Baton Rouge — St. Agnes Parish · stagnesbr.com · 2026Parish chronology: Fr. Brent Maher's Solemn High Traditional Latin Mass of May 28, 2021, 'the first one in decades at St. Agnes'; Duca's appointment of Maher as pastor, Sept. 12, 2020.
5.
St. Agnes parish bulletin, July 16, 2023 — St. Agnes Parish · static1.squarespace.com · 2023Lists Sunday 9:15 a.m. (Latin) and Tuesday 5:30 p.m. (Latin) Masses - the continuation of the parish's Latin Mass schedule two years after the 2021 permission.
Portrait: TheCoolestKidHere / Wikimedia Commons
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