Born in
Ghent, the son of a baker, Mortier attended in youth the Jesuit school
Sint-Barbaracollege, following the death of his mother. He subsequently studied law and journalism at
Ghent University. Mortier pursued apprenticeships in opera administration under
Christoph von Dohnányi in Frankfurt and
Rolf Liebermann in Paris. He worked for the Flanders Festival from 1968 to 1972. His first major administrative post was as the general director of
La Monnaie (De Munt) in Brussels from 1981 to 1991, where he was credited with artistically rejuvenating the company. He subsequently held the general directorship of the
Salzburg Festival from 1991 to 2001. Mortier was the founding director of the
Ruhrtriennale arts festival in Germany, leading it from 2002 to 2004. He was inspired to "a social and artistic experiment: how to attract new audiences to the classics and galvanize a depressed corner of Germany." He put intimate productions into expansive, renovated industrial spaces. In 2003, he offered an ambitious season of 23 productions with 129 performances in 15 spaces, along with additional concerts, a fringe festival and what promises to be an astonishing installation of a
Bill Viola video spectacle,
Five Angels for the Millennium, inside a mighty, gorgeously restored gas tank in Oberhausen. Mortier assisted with company operations from Paris during the interim period after his appointment was announced. Problems with fund-raising and a smaller-than-expected budget began to develop during the interim period after his appointment. In addition, Mortier was campaigning for a position as co-artistic director of the
Bayreuth Festival. In November 2008, Mortier resigned when it became clear that the board would not give him the money needed to produce a meaningful slate of opera productions. Also in November 2008, Mortier accepted the position of artistic director of the
Teatro Real in Madrid. While in New York, he had already commissioned a new opera,
Brokeback Mountain, with the American composer
Charles Wuorinen and a libretto by
Annie Proulx, who wrote the original short story on which it is based. This was one of the projects Mortier took with him to the Teatro Real, and it was completed in 2012. In September 2013, Mortier disclosed publicly his condition of cancer. During the search for his successor, he made controversial comments that he did not know of a fully qualified Spanish candidate to succeed him, and mentioned concerns about the expressed government interference in the choice of successor and their wish to have only a Spanish candidate succeed him. Later that month, following the appointment of
Joan Matabosch as the company next's artistic director, Mortier was named artistic advisor of the company. On 28 January 2014,
Brokeback Mountain premiered in Madrid. The production had been highly anticipated in the international season, and it was considered also a tribute to Mortier, "and a testament to his tireless support of the artists who work with him." Mortier died of pancreatic cancer in
Brussels on 8 March 2014, aged 70. Survivors include his sister Rita ==Legacy and honors==