Episcopal Resignation and Appointment for the Diocese of London
Date posted on April 21, 2026
Today, His Holiness Pope Leo XIV has accepted the resignation of the Most Reverend Ronald P. Fabbro, CSB, Bishop of London since 2002, and appointed the Most Reverend Daniel J. Miehm as his successor. At the time of his nomination, Bishop Miehm was serving as Bishop of Peterborough.
Bishop Miehm will be installed as the Bishop of London at a Mass to be celebrated at St. Peter’s Cathedral Basilica on June 29th, the Solemnity of Saints Peter and Paul. The Diocese of Hamilton offers its prayers and congratulations to Bishop Fabbro upon the acceptance of his resignation and warmly welcomes Bishop Miehm as a neighbouring bishop.
Bishop Miehm
Born on 27 August 1960, in Kitchener, Ontario, Bishop Miehm studied at St. Jerome’s College in the University of Waterloo, where he obtained a Bachelors of Art in 1982. He pursued theological formation at St. Augustine’s Seminary, Toronto, obtaining a Masters of Divinity in 1989; and at Saint Paul University, Ottawa, where he obtained a Bachelors of Theology in 1989. He later studied at the Pontifical University of Saint Thomas Aquinas, Rome, where he obtained a Licentiate in Canon Law in 1996. On 6 May 1989, he was ordained priest for the Diocese of Hamilton, and was appointed as Auxiliary Bishop of Hamilton on 20 February 2013 and ordained to the episcopate on 7 May 2013. He was then appointed Bishop of Peterborough on 10 March 2017.
Bishop Miehm has also been a Judge and Defender of the Bond of the Hamilton Office of the Toronto Regional Tribunal (1996–2012); an elected representative on the Diocesan Personnel Board (1998–2004); member of the Presbyteral Council of the Diocese of Hamilton (2002–2004); member of the Board for Hamilton Catholic Family Services (2002–2008), of which he was President for three years; and a member of the Board of Governors of St. Augustine’s Seminary, Toronto.
At the provincial level, he has served as a member of the Professional Conduct Committee of the Assembly of Catholic Bishops of Ontario (2004–2010).
As a member of the Canadian Conference of Catholic Bishops, Bishop Miehm serves as member of the Permanent Council, Catholic Co-chair of the Hindu-Catholic Dialogue, member of the Standing Committee on Canon Law, and as Episcopal Liaison with Canadian Catholic Campus Ministry.
Diocese of London
The Diocese of London has 104 parishes and missions. Its Catholic population of 444,310 is served by 136 diocesan priests, 50 priests in consecrated life, 67 permanent deacons, 473 women in consecrated life, as well as 64 officially mandated lay pastoral agents.