Walter Brandmüller was born in Ansbach, Germany, on 5 January 1929, to a Catholic father and a Protestant mother; baptized a Protestant, he converted to Catholicism as an adolescent (Wikipedia). Ordained a priest in Bamberg on 26 July 1953, he took a doctorate at Munich (1963) and habilitated on the Council of Pavia-Siena. From 1970 to 1997 he was professor of Church history at Augsburg, founding the journal Annuarium Historiae Conciliorum (1969) and the Konziliengeschichte series, and writing the standard two-volume history of the Council of Constance. He remained a working parish priest in Walleshausen until 1998.
From 1998 to 2009 he presided over the Pontifical Committee for Historical Sciences. Consecrated a bishop in November 2010 (titular Archbishop of Caesarea in Mauretania), he was created a cardinal by Benedict XVI on 20 November 2010, with the deaconry of San Giuliano dei Fiamminghi. In retirement he became a leading doctrinal critic of Pope Francis: a signer of the 2016 and 2023 dubia and of the 2019 open letter with Cardinal Burke. His motto is Ignem in Terram — “fire upon the earth.”
Consequential Quotes
Withdrawing now and overturning a 2,000-year tradition totally astounded not only us cardinals.
Major Works & Initiatives
President of Historical Sciences
Ran the Church's history committee.
Founder of the Annuarium
The journal and series of council history.
The Constance history
Two volumes on the great Western council.
Controversies
The dubia signer
Brandmüller co-signed the five dubia submitted to Pope Francis in September 2016 questioning Amoris Laetitia — published that November after no reply — a second set of five dubia in 2023 before the Synod on Synodality, and a February 2019 open letter with Cardinal Burke calling for an end to “the plague of the homosexual agenda.” In November 2017 the retired Benedict XVI wrote him expressing displeasure at his public criticism of the resignation and the “pope emeritus” title (letters reported by Bild and the New York Times in 2018).