On November 30, 2021, Bishop Brennan was installed as the Eighth Bishop of Brooklyn, serving the people of Brooklyn and Queens.

Bishop Robert J. Brennan was born June 7, 1962, to Robert and Patricia Brennan in the Bronx, New York. The oldest of five children, Bishop Brennan has two brothers and two sisters, 14 nieces and nephews, and three great-nephews and niece.

He was raised in Lindenhurst, New York, where his parents still reside. Bishop Brennan attended Our Lady of Perpetual Help Catholic School in Lindenhurst, and St. John the Baptist Diocesan High School, West Islip, New York. He earned a Bachelor of Science degree in mathematics and computer science from St. John’s University, Queens, New York.
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Born in Newark, New Jersey, on June 16, 1944, His Excellency, the Most Reverend Nicholas DiMarzio, attended the Immaculate Conception Seminary in Darlington, New Jersey, was ordained a Roman Catholic Priest for the Archdiocese of Newark in 1970, and named Prelate of Honor by Pope John Paul II in 1986.
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The Most Reverend James Massa was born in Jersey City, New Jersey, to the late Andrew and Irene Gilbert Massa. He attended Boston College and graduated with a Bachelor’s in Theology and History in 1982. In 1985, he earned a Master’s of Divinity Degree from Yale University, and in 1997, a Ph.D. in Systematic Theology from Fordham University, where he wrote his dissertation under the late Cardinal Avery Dulles.
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The Most Reverend Witold Mroziewski was born on March 25, 1966, to Waclawa Jablonska and the late Jan Edmund Mroziewski in Augustow, Poland. He earned a Masters in Theology from the Catholic University in Lublin, Poland, in 1991. He returned to K.U.L., Poland, and earned a Masters in Canon Law (2001) and Juris Canon Lawyer (Doctoral 2003).
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The Most Reverend Neil Tiedemann, born March 5, 1948, at Peck Memorial Hospital in Crown Heights, Brooklyn, was raised in St. Catherine of Sienna Parish in Franklin Square, Long Island. He attended the Passionists’ Holy Cross H.S. Seminary in Dunkirk, NY; Holy Family Seminary in West Hartford CT; LaSalle University in Philadelphia, PA in 1970 received a Bachelor of Arts in Sociology; and earned master degrees in Theology and Masters in Divinity in 1975 at St. John’s University in Jamaica, Queens. As a seminarian, Tiedemann was involved in outreach efforts with Catholic Charities Brooklyn and Queens near St. Barbara Parish in Bushwick.
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The Most Reverend Raymond F. Chappetto, D.D., was born on August 20, 1945, in Astoria. He studied at Cathedral College in Brooklyn and was awarded a Master of Divinity from Our Lady of Angels Seminary in Albany. Bishop Chappetto also holds a Master of Arts in Religious Education from St. John’s University and is certified in Pastoral Counseling.
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Auxiliary Bishop Emeritus Octavio Cisneros was born in Las Villas, a province of Cuba, on July 19, 1945, the third of four children of Roberto Cisneros and Olga Lezcano, both now deceased. Shortly after his birth, his family moved to La Habana, where he was baptized in Our Lady Montserrat Church.

The Piarist Fathers educated him as a youngster, and in October 1961, while a high school student, he came to the United States as a political refugee as part of Operation Peter Pan, a Catholic humanitarian effort that brought 14,000 unaccompanied minors to the U.S. from Cuba.
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The Most Reverend Paul Sanchez was born November 26, 1946, in Brooklyn. He earned a Bachelor of Arts from St. Bonaventure’s University, a Master of Arts from the University of Notre Dame and a Licentiate of Sacred Theology from the Pontifical Gregorian University in Rome.
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