Posted October 29, 2026

Reverend Monsignor Louis A. D’ Addezio Retired, Resident, Villa Saint Joseph, Darby, died on Saturday, October 24, 2026.

Monsignor D’Addezio was born on October 18, 1933, in Philadelphia, Pennsylvania. He is the son of the late Luigi A. D’Addezio and the late Philomena Viscichini. Monsignor D’Addezio attended Downingtown West Ward Public School, and Saint Agnes High School, West Chester, before entering Saint Charles Borromeo Seminary.

Monsignor D’Addezio was ordained on May 13, 1961, at the Cathedral Basilica of Saints Peter and Paul, Philadelphia by Most Reverend John J. Krol. He was named Honorary Prelate to His Holiness Pope John Paul II on May 29, 1991. Monsignor D’Addezio served as Parochial Vicar, Saint Donato Parish, Philadelphia; and Saint Anthony of Padua Parish, Chester. He served on the Faculty and as Vice Principal at Cardinal O’Hara High School Springfield, He also served as Principal at Saint Pius X High School, Pottstown, and Cardinal Dougherty High School, Philadelphia. He sewed as Pastor, at Our Lady of the Assumption Parish, Strafford; and Saint John the Evangelist Parish, Philadelphia. In 1991 he was appointed as Director, Office for General Services/Special Projects and Closures, where he remained until he retired in 2010.

The Reception of the Body will be held at Saint Joseph Church, Downingtown, on Thursday, November 5, 2026, at 4:30 PM followed by a viewing from 5:00 PM to 7:00 PM. Most Reverend Nelson J. Pérez will celebrate the Funeral Mass at 11:00 AM on Friday, November 6, 2026.

Concelebrating the Funeral Mass will be Reverend Christopher B. Rogers, Reverend Anthony R. Hangholt, and Reverend G. Dennis Gill will be the homilist.

Monsignor D’ Addezio is survived by his brother Anthony and nieces and nephews.

The burial will be on Friday, November 6, 2026, at Saint Joseph Cemetery, Downingtown, Pennsylvania.