Joseph Zen was born in
Shanghai to
Catholic parents, Vincent Zen and Margaret Tseu. He studied in a church school during the
Second Sino-Japanese War, but was sent to an
abbey after his father suffered a stroke. After entering the
Salesians at the Hong Kong
novitiate in 1948, he was
ordained to the
priesthood on 11 February 1961 by Cardinal
Maurilio Fossati. Zen obtained a
licentiate in theology (1961) and a doctorate in philosophy (1964) from the
Salesian Pontifical University in Rome. After 1973, he taught in the Holy Spirit Seminary College of Hong Kong – 1976 to 1978 of Macao Salesian School (
Instituto Salesiano) as principal. In 1978 he became the
Provincial Superior of Salesians (which includes mainland China, Hong Kong, Macau, and Taiwan), then resigned in 1983. He was a lecturer in the
seminaries in China, centres of studies acknowledged by the Communist party, between 1989 and 1996. He was appointed the
coadjutor Bishop of Hong Kong in 1996 by
Pope John Paul II. He also said that he wanted to be a teacher in either mainland China or in Africa, as there was a shortage of teachers in Africa.
Democratic Party ex-chairman
Martin Lee, also a Roman Catholic, stated that because Zen was still healthy for his age, the Pope may request him to stay in his position. Legislative Council member
Audrey Eu praised Zen for being braver than other religious leaders in Hong Kong in sharing his political views and also because "he carried out his ideas of fairness, equitableness, and philanthropy via actual efforts". On the other hand, some conservatives inside the church speculated that the strained relationship between Beijing and the
Holy See will become more relaxed if Zen retires. Nonetheless, Zen wrote a letter to the Pope on 13 January 2006 and stated that he did want to retire from his position, though not because of his age. On 15 April 2009, Pope Benedict accepted Zen's resignation and
John Tong Hon became the bishop of the
diocese. From 22 October 2011 for three days Zen went on
hunger strike which was undertaken as an act of protest against losing a long-standing legal battle with the Hong Kong government over how aided schools should be run. He later wrote about his experiences in an open letter.
Cardinalate 5:7. In English it says: "He cares."|alt=A coat of arms showing a big anchor in gold, a brown ship with a silver sail with a red cross on the see. On the background, an orange city skyline with a characteristic skyscraper. Towering over the skyline, a red pillar with a radiant gold custody and a lower red pillar with a blue Madonna. The background is silver. Behind the coat itself, a gold crozier. Above the coat of arms a red cardinal's hat. From the hat, cardinal strings hang to the sides. Under the coat of arms a red scroll with the black motto "IPSI CURA EST". On 22 February 2006, the Vatican announced that Zen would be elevated to the
College of Cardinals by
Pope Benedict XVI in the
consistory on 24 March 2006. Zen, who was created
Cardinal-Priest of
Santa Maria Madre del Redentore a Tor Bella Monaca, saw his elevation as indication of how much the Pope values the Church in China. He was named a member of the
Congregation for Divine Worship and the Discipline of the Sacraments. Zen's elevation was welcomed by Catholics in Hong Kong as it was seen as a recognition of his stance on social justice and as an honour for the church in Hong Kong. Vicar General
Dominic Chan Chi-ming said that it would be an honour to have a cardinal to once again head the diocese. Rev.
Louis Ha Ke-loon said it shows that the Pope feels that Zen should speak out. Democrat legislator Martin Lee added that it was good news because no matter whether he is a bishop or a cardinal, as a religious leader Zen speaks as moral voice of the people. At the time of his elevation, Zen was the only Chinese cardinal eligible to participate in papal conclaves. Zen offered a
Pontifical High Mass in the
Tridentine Rite in May 2006, for which he was thanked by
traditionalist Catholics around the world. Pope Benedict XVI named Zen to write the meditations for the
Stations of the Cross led by the Pope at the Roman
Colisseum on
Good Friday, 21 March 2008. In August 2023,Cardinal Brandmüller, along with Cardinals Burke,
Íñiguez,
Sarah, and Zen, submitted another list of five
dubia to Pope Francis related to the upcoming
Synod on Synodality. The
Dubia questioned the necessity of the upcoming synod, asked whether the blessing of same-sex unions was theologically admissible, and questioned the Pope's claim that "forgiveness is a human right". Zen criticized some of Pope Francis' responses to the five dubia, saying that the Pope's guidance on the blessing of same-sex unions is "pastorally untenable." ==Relations with the People's Republic of China==