Edit: I know for a fact that Archbishop Nienstedt doesn't know how to say the Immemorial Mass of All Ages, but he has "celebrated" at them and shown his support on at least one occasion by being present in choir. Some commenters have pointed this out. Well, it depends on what you mean by "celebrates" Mass. Technically, anyone can "celebrate" Mass.
Since the Motu Proprio, Summorum Pontificum of Pope Benedict XVI was put into effect in 2007 the following Bishops and Cardinals have celebrated the Immemorial Mass of All Ages. The Spanish blog Acción Litúrgica has compiled the following list.
GERMANY: Cardinal Walter Brandmüller (President of the Papal Historical Commission), Dick (Auxiliary Bishop Emeritus of Cologne), Hanke (Bishop of Eichstätt), Mixa (Bishop Emeritus of Augsburg), Ostermann (Auxiliary Bishop von Münster), Overbeck (Bishop of Essen)
AUSTRIA: Cardinal Stickler (+2007), Laun (Auxiliary Bishop of Salzburg)
SWITZERLAND: Farine (Auxiliary bishop of Lausanne, Freiburg and Genf), Genoud (Bishop von Lausanne, Freiburg and Genf, +2010), Huonder (Bishop von Chur), Perisset (Apostolic Nuncio in the Federal Republic of Germany)
LIECHTENSTEIN: Haas (Archbishop von Vaduz)
ARGENTINA: Baseotto ( Bishop Emeritus Castrense de Argentina), Laise ( Bishop Emeritus of San Luis), Sánchez Sorondo (Chancellor of the Pontifical Academy de Ciencias)
AUSTRALIA: Cardinal Pell (Archbishop of Sydney), Coleridge (Archbishop of Canberra), Hart (Archbishop of Melbourne), Hickey (Archbishop of Perth), Elliot (Auxiliary Bishop of Melbourne), Grech (Bishop of Sandhurst, +2010), Jarret (Bishop of Lismore), Porteus (Archbishop of Sydney), Prowse (Bishop of Sale)
BELGIUM: Leonard (Archbishop of Brussels, Primate of Belgium), Harpigny (Bishop of Tournai)
BENIN: N´Koue (Bishop of Natitingou)
BRAZIL: Pena (Archbishop of Niterói), Taveira Correa (Archbishop of Belem do Pará), Tempesta (Archbishop of Río de Janeiro), Areas Rifán (Bishop of the Apostolic Administration of San Juan Marían Vianney), Bergamin (Bishop of Nova Iguaçu), Canindé Palhano (Bishop of Senhor do Bomfim), Da Silva (em. Auxiliary Bishop von Fortaleza), Fontes de Matos (Bishop of Palmira dos Indios), Guimaraes (Bishop of Garanhuns), Lopes de Faria (em. Bishop of Diamantina,+2009), Paixao (Auxiliary Bishop of Salvador-Bahía), Pestana Filho (em. Bishop of Anápolis,+2011), Romer (em. Auxiliary Bishop of Río de Janeiro), Silva Matthes (em. Bishop of Franca), Sivieri (Bishop of Propriá-Sergipe), Soares da Costa (Auxiliary Bishop of Aracaju), Stringhini (Bishop of Franca)
CHILE: Cardinal Medina Estévez (em. Prefect of the Congregation for Doctrine and the Faith), Piñera Carvallo (em. Archbishop of La Serena). Bishop González Errázuriz (Bishop of San Bernardo)
CHINA: Cardinal Zen (em. Archbishop of Hong Kong)
DENMARK: Kozon (Bishop of Kopenhagen)
FRANCE: Cardinal Barbarin (Archbishop von Lyon), Cardinal Ricard (Archbishop of Bordeaux), Cardinal Ving-Trois (Archbishop of París, President of the French Council of Bishops), Bacqué (Nuncio to Holland), D´Ornellas (Archbishop of Rennes), Le Gall (Archbishop of Toulouse), Madec (em. Archbishop of Toulon), Maillard (Archbishop of Bourges), Thomazeau (Archbishop of Montpellier), Aillet (Bishop of Bayonne), Aumonier (Bishop of Versailles), Bagnard (Bishop of Belley-Ars), Batut (Auxiliary Bishop of Lyon), Boivineau (Bishop of Annecy), Brouwet (Auxiliary of Nanterre), Centène (Bishop of Vannes), De Dinechin (Auxiliary of Paris), De lmas (Bishop of Angers), Dubost (Bishop of Evry), Dufour (Bishop of Limoges), Fikart (em. Auxiliary of Paris), Fort (Bishop of Orleans), Fréchard (em. Bishop of Auch), Gaidon (em. Bishop of Cahors, +2011), Guillaume (em. Bishop of Saint-Dié), Kalist (Bishop of Limoges), Kratz (Auxiliary Bishop of Straßburg), Lebrun (Bishop of Saint-Etienne), Mathieu (Bishop of Saint-Dié), Pansard (Bishop of Chartres), Rey (Bishop of Frejus-Toulon), Riocreux (Bishop of Pontoise), Scherrer (Bishop of Laval), Séguy (em. Bishop of Autun), Wintzer (Auxiliary Bishop of Poitiers)
GABON: Mvé Engone (Archbishop of Libreville), Bischof Madega (Bishop of Port-Gentil)
Great Britain: Cardinal O´Brien (Archbishop of Edinburgh, Primate of Schottland), Conti (Archbishop of Glasgow), Kevin (em. Archbishop of Southwark), Longley (Archbishop of Birmingham), Arnold (Auxiliary Bishop of Westminster), Cunnigham (Bishop of Hexham and Newcastle), Doyle (Bishop of Northampton), Gilbert (Bishop of Aberdeen), Hopes (Auxiliary Bishop of Westminster), Kenney (Auxiliary Bishop of Birmingham), McGough (Auxiliary Bishop of Birmingham), McMahon (Bishop of Nottigham), Moran (Bishop of Aberdeen), Sherrington (Auxiliary Bishop of Westminster), Stack (Auxiliary Bishop of Westminster), Williams (Auxiliary Bishop of Liverpool)
HAITI: Gayot (em. Archbishop of Cap-Haitien, +2010)
CANADA: Roussin (Archbishop of Vancouver, em. 2009), Miller (Archbishop of Vancouver), Prendergast (Archbishop of Ottawa). Blais (Archbishop of Quebec), Lemay (Archbishop of Quebec)
COLOMBIA: Cardinal Castrillón Hoyos (em. President of the Ecclesia Dei Commission)
CROATIAN: Pozaic (Auxiliary Bishop of Zagreb)
ITALY: Cardinal Antonelli (Archbishop of Florence, em. 2008), Cardinal Bagnasco (Archbishop of Genoa, President of the Italian Bishops' Conference), Cardinal Bartolucci (em. Choir Master of the Sistine Chapel), Cardinal Caffarra (Archbishop of Bologna), Cardinal De Paolis (Director of the Precture for the Economic Affairs of the Holy See), Cardinal Piovanelli (em. Archbishop of Florence), Cardinal Poggi (em. Papal Library, +2010), Cardinal Scola (Archbishop of Milan), Accerbi (Titular Bishop, Prelate of the Sovereign Order of Malta), Appignanesi (em. Archbishop of Potenza), Bassetti (Archbishop of Perugia), Berloco (Apostolic Nuncio in Belgium), Betori (Archbishop of Florenz), Boccardo (Archbishop of Spoleto-Norcia), Brugnaro (Archbishop of Camerino-San Severino), De Magistris (em. Archbishop
Pro-Major Penitentiary of Apostolic Penitentiaryr), Molinari (Archbishop of L´Aquila), Ambrosio (Bishop of Piacenza), Cancian (Bishop of Città di Castello), Fisichella (Curial Bishop, President of the Papal Academy for Life), Giovanetti (Bishop von Fiesole), Giusti (Bishop of Livorno), Lambiasi (Bishop of Rimini), Miglio (Bishop of Ivrea), Mistrorigo (em. Bishop of Treviso), Oliveri (Bishop of Albenga-Imperia), Rabitti (Bischop of Ferrara), Ravignani (em. Bishop of Triest), Reali (Bishop of Porto-Santa Rufina), Scanavino (Bishop of Orvieto), Tardelli (Bishop of San Miniato)
IRELAND: Martin (Archbishop of Dublin), Magee (Bishop of Cobh), Moriarty (em. Bishop of Kildare y Leighlin)
KAZAKHSTAN: Schneider (Auxiliary Bishop of Astana)
LITHUANIA: Bartulis (Bishop of Siauliai)
MEXICO: Suárez Inda (Archbishop of Morelia)
MONACO: Barsi (Archbishop of Monaco)
NIGERIA: Cardinal Arinze (em. Prefect for Divine Worship), Ochiagha (em. Bishop of Orlu), Tochukwu Ukwuoma (Bishop of Orlu)
NEW ZEALAND: Meeking (em. Bishop of Christchurch)
HOLLAND: Punt (Bishop von Amsterdam)
PARAGUAY: Livieres (Bishop of Ciudad del Este)
PHILIPPINES: Lagdameo (Archbishop of Jaro), Escaler (em. Bishop of Ipil), De Gregorio (Administrator of the Apostolic Prelature of Batan), Hobayan (em. Bishop of Cazarman), Tobias (Bishop of Novaliches)
POLAND: Cardinal Nycz (Archbishop of Warsaw), Golebiewski (Archbishop of Breslau), Zscysinski (Archbishop of Lublin), Balcerek (Auxiliary Bishop Poznań), Depo (Bishop of Zamosc-Lubaczow), Dziuba (Bishop of Lowicz), Gorny (Bisop of Rzeszów), Malysiak (em. Auxiliary of Krakow), Mizinski (Auxiliary Bishop of Lublin), Pieronek (em. Auxiliary Bishop of Sosnowitz), Szkodon (Auxiliary Bishop of Krakau)
PUERTO RICO: Torres Oliveira (em. Bishop of Ponce)
RUSSIA: Pezzi (Archbishop of Moscow)
SLOVAKIA: Bezák (Archbishop of Trnava)
SLOVENIA: Cardinal Rodé (Prefect em. for the Congregation for Institutes of Consecrated Life and Societies of Apostolic Life)
SPAIN: Cardinal Cañizares Llovera (Prefect of the Congregation for Divine Worship), Martínez Sistach (Archbishop of Barcelona), Curial Bishop Herranz Casado, Navarrete Cortés (em. Rector of the Papal University of St. Gregory, +2010), Ureña Pastor (Archbishop of Saragossa), Fernández González (Bishop of Córdoba), Iceta Gavicagogeascoa (Bishop of Bilbao), Yanguas Sanz (Bishop of Cuenca)
SRI LANKA: Cardinal Ranjith (Archbishop of Colombo)
CZECH REPUBIC: Baxant (Bishop of Leitmeritz)
HUNGARY: Farhat (Nuncio to Austria), Varga Lajos (Archishop of Vácbish)
USA: Cardinal Baum (em. Apostolic Penitentiary), Burke (Prefect of the Apostolic Signatura), Egan (em. Archbishop of New York), Foley (Grand Master of the Knights of the Holy Sepulcher in Jerusalem, +2011), George (Archbishop of Chicago), Levada (Prefect of the Congregation for Doctrine and the Faith), O’ Malley (Archbishop of Boston), Brunett (Archbishop of Seattle), Carlson (Archbishop of Saint Louis), Di Noia (Secretary for the Congregation of Divine Worship), Hugues (em. Archbishop of New Orleans), Kevin (em. Archbishop of Southwark), Myers (Archbishop of Newark), Nienstedt (Archbishop of Saint Paul in Minneapolis), Pilarczyk (em. Archbishop of Cicinnati), Vigneron (Archbishop of Detroit), Wenski (Archbishop of Miami), Backer (Bishop of Birmingham), Boyea (Bishop of Lansing), Bevard (Bishop of Saint Thomas), Blair (Bishop of Toledo, Ohio), Bruskewitz (Bishop of Lincoln), Burbidge (Bishop of Raleigh), Callahan (Bishop of LaCrosse), Conley (Auxiliary Bishop of Denver), Cordileone (Bishop of Oakland), Corrada (Bischof von Tyler), D´Arcy (Bischof von Fort Wayne-South Bend), Daniels (Bischof von Grand Falls), Dewane (Bishop of Venice), Di Lorenzo (Bishop of Richmond), Di Marzio (Bishop of Bofrooklynn), Doran (Bishop Rockford), Etienne (Bishop of Cheyenne), Farrell (Bishop of Dallas), Finn (Bishop of Kansas City), Foley (em. Bishop of Birmingham), Gainer (Bishop of Lexington), García (Bishop of Monterey), Hermann (Auxiliary Bishop of Saint Louis), Hurley (Bishop of Grand Rapids), Keleher (em. Bishop of Kansas City), Kicanas (Bishop of Tucson), Madera Uribe (em. Bishop of Fresno), Matano (Bishop of Burlington), McFadden (Bishop of Harrisburg), McManus (Bishop of Worcester), Morlino (Bishop of Madison), Murphy (Bishop of Rockville Centre), Nevares (Auxiliary Bishop of Phoenix), Olmsted (Bishop of Phoenix), Perry (Auxiliary Bishop of Chicago), Provost (Bishop of Lake Charles), Reiss (Auxilary Bishop of Detroit), Rhoades (Bishop of Harrisburg), Ricken (Bishop of Green Bay), Sample (Bishop of Marquette), Serratelli (Bishop of Paterson), Silva (Bishop of Honolulu), Slattery (Bishop of Tulsa), Timlin (em. Bishop of Scranton), Tobin (Bishop of Providence), Waltersheid (Auxiliary Bishop of Pittsburg), Van Johnston (Bishop of Springfield, Missouri).
Finally are still the Bishops of the Society of St. Pius X: Fellay, De Galarreta, Tissier de Mallerais and Williamson.
Text: Acción Litúrgica /Giuseppe Nardi
Bild: Jens Falk/Acción Litúrgica
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