Pierre Bergé, who remodeled the French vogue trade because the managerial genius behind Yves Saint Laurent, and went on to have a tempestuous profession because the czar of Paris opera, died on Friday in Saint-Rémy-de-Provence, France. He was 86.

The dying, from myopathy, a neuromuscular dysfunction, was announced by the Fondation Pierre Bergé-Yves Saint Laurent.

Mr. Bergé and Mr. Saint Laurent, then lovers, co-based the style home in 1961 and remained lifelong enterprise companions, though they cut up up as a pair within the 1980s. Mr. Bergé ran the home for 4 many years, till 2002.

Beneath Mr. Bergé’s steering, high fashion grew to become extra of a backside-line enterprise, utilizing success in runway reveals to propel the gross sales not solely of prepared-to-put on garments but in addition of perfumes, purses and different equipment with designer labels.

His ambitions carried him removed from vogue into the worlds of politics and tradition. Although his shoppers have been principally wealthy and conservative, he was a staunch supporter of the Socialist Social gathering, a contributor to liberal causes and a patron and arbiter of literature, theater and music.

Most of all, although, he appeared to relish the controversy that his wealth, energy and prickly character introduced him. Properly earlier than the death of Mr. Saint-Laurent in 2008, Mr. Bergé had turn out to be a social star in his personal proper.

“Individuals could hate me or love me, however all of them need to brag that they as soon as sat subsequent to me at a cocktail party,” he as soon as mentioned.

There gave the impression to be no impartial opinions about Mr. Bergé, a person of slight construct, exquisitely tailor-made fits and oval, horn-rimmed glasses, which gave him an owlish look. Hailed as a grasp of the enterprise deal, he was additionally denounced in some quarters as a scoundrel who absolutely deserved the superb he was ordered to pay for insider buying and selling.

After President François Mitterrand put him charge of Paris’s opera houses, together with the newly constructed Bastille Opera, Mr. Bergé scandalized the music world by firing Daniel Barenboim as its music and inventive director, contending that his wage was too excessive and that his plans for the home have been too elitist.

However as Mr. Bergé famous gleefully, he used that and different controversies to extend attendance at the opera home. “Parisians at this stage desire a Barnum greater than a Toscanini,” he mentioned.

Philippe Collin, a movie director and critic who knew Mr. Bergé for 40 years, mentioned, “I consider him as an awesome Hollywood producer from the golden period.”

Just like the fables surrounding a Samuel Goldwyn Jr. or a David O. Selznick, tales of Mr. Bergé’s generosity have been as legion as tales about his acts of gratuitous offense.

On the Saint Laurent atelier in Paris, a seamstress spoke of Mr. Bergé’s unstinting monetary assist to terminally sick colleagues, however one other lady employed there known as him a “misogynist” who promoted solely males to the upper rungs.

On the Bastille Opera, workers of each sexes spoke sotto voce about Mr. Bergé’s “reign of terror,” which led to the resignations of a lot of the senior employees he had inherited. And vogue writers complained that unfavourable evaluations of Saint Laurent collections may get them banned — at least briefly — from future reveals.

Pierre Bergé was born on Nov. 14, 1930, on the tiny Île d’Oléron, off the Atlantic coast of France. His father was a civil servant, his mom a schoolteacher. Mr. Bergé moved to Paris as a teen intent on changing into a journalist. Arrested throughout a political demonstration, he spent the night time in jail with Albert Camus and then joined him for espresso after they have been launched the next morning.

After that probability encounter, Mr. Bergé, at a starry-eyed 19, grew to become the editor and writer of a left-wing journal whose contributors included Camus and Jean-Paul Sartre. The publication didn't final lengthy, but it surely helped Mr. Bergé set up lasting friendships with Jean Cocteau and Christian Dior. And he grew to become a companion of the painter Bernard Buffet, who grew to become a mentor.

The defining second in his life, as Mr. Bergé usually mentioned, was assembly Mr. Saint Laurent in 1958. Intense and introverted, Mr. Saint Laurent was already, at 23, a extremely regarded designer for the Home of Dior. “I immediately acknowledged his genius,” mentioned Mr. Bergé, who was 29 at the time. The 2 males grew to become lovers.

With Mr. Bergé as his supervisor, publicist and accomplice, Mr. Saint Laurent exhibited his first assortment in 1962. By the 1970s, Mr. Saint Laurent was heralded as essentially the most influential designer of his technology, epitomizing the trendy lady with swagger and extending vogue’s vary of expression by bringing pea jackets, bike jackets and Cossack coats to high fashion.

For his half, Mr. Bergé demonstrated a enterprise creativity that the style world had seldom seen earlier than. Within the 1960s, he expanded Saint Laurent’s operations from high fashion into the much more worthwhile prepared-to-put on market, with boutiques in Paris, New York and different cities throughout the globe. When the high fashion operations wanted capital in 1971, Mr. Bergé bought the prepared-to-put on division to the Squibb Company, solely to purchase it again two years later.

In 1986, he organized the sale of 25 % of the Saint Laurent empire to Carlo de Benedetti, the Italian entrepreneur, and used the cash to purchase Charles of the Ritz, which owned numerous designer perfumes, together with a number of Saint Laurent fragrances.

Then, in 1989, below Mr. Bergé’s steering, the Yves Saint Laurent group grew to become the primary French design home to be listed on the Paris Bourse. Investor response was sensational. Buying and selling needed to be halted through the first two days as a result of there have been 28 purchase presents for every of the 400,000 shares initially put up on the market. By 1990, the group was ringing up $500 million in annual gross sales.

However after earnings and share costs plunged through the subsequent few years, Mr. Bergé reduce a particularly advantageous deal for himself and Mr. Saint Laurent in 1993 by selling the Yves Saint Laurent group for $655 million to Elf Sanofi, the French pharmaceutical big. The 2 males agreed to proceed to handle YSL’s high fashion operations.

Along with their glittering enterprise relationship, Mr. Bergé and Mr. Saint Laurent shared a luxurious life-style that made them fixtures in European excessive society. They crammed their grand Paris condo with vintage furnishings and lined its partitions with Impressionist, Cubist and modern work. They flew company by helicopter to their chateau in Normandy, in northern France.

In Marrakesh, Morocco, they opened considered one of their villa’s buildings as a museum specializing in Islamic artwork. And in New York, they embellished their condo at the Pierre Lodge with 19th-century Americana.

It was solely within the 1980s that Mr. Bergé, who had at all times portrayed himself as an éminence grise, started to step out of Mr. Saint Laurent’s shadow. Mr. Bergé mentioned that the victory of François Mitterrand and his Socialists in 1981, after 23 years of conservative Gaullist governments, persuaded him to lift his profile. “I used to be at all times a person of the left, although by no means a Marxist,” he mentioned. “And I made a decision politics was fascinating once more.”

However strains in his relationship with Mr. Saint Laurent have been additionally main Mr. Bergé to chop a extra public determine. At all times timid, Mr. Saint Laurent grew to become more and more reclusive. In interviews, he admitted to struggles with alcoholism, an habit to cocaine and nervous breakdowns. “Yves was born with a nervous breakdown,” Mr. Bergé mentioned dismissively.

By the mid-1980s the 2 males have been dwelling aside, although their enterprise relationship apparently remained as sturdy as ever. Whereas Mr. Saint Laurent appeared capable of summon up solely sufficient vitality to design his collections, Mr. Bergé displayed boundless dynamism. He united designers displaying in France into one group, generally known as the Chambre Syndicale, to advertise the style trade. He was the founding president of the French Fashion Institute and a founding father of the Museum of Fashion Arts, each in Paris. Turning couture into an instrument of diplomacy, he staged Saint Laurent expositions in Moscow and Beijing.

With xenophobia and anti-Semitism rising in France, Mr. Bergé contributed generously to S.O.S. Racisme, a defender of minorities. When the AIDS epidemic started, he helped set up outpatient care and grew to become president of Arcad SIDA, which financed AIDS analysis and schooling. And as a writer, he used his journal, Globe, to push his favourite causes, usually contributing mordant and outspoken columns.

Mr. Bergé didn't thoughts risking Saint Laurent gross sales by his political activism. He offended some Saint Laurent shoppers by soliciting funds for the re-election of Mr. Mitterrand in 1988. The Gaullist candidate, Jacques Chirac, denounced Mr. Bergé because the “foremost consultant of the Caviar Left.” And Jacques Calvet, the pinnacle of Peugeot, the automaker, publicly urged a boycott of Saint Laurent merchandise. However the name went unheeded by most outstanding shoppers, who appeared to know the place to attract the road between their politics and their requirements.

Mr. Bergé grew to become a pal and trusted confidant of President Mitterrand. He was usually invited to the president’s nation residence, the place they mentioned politics and tradition throughout lengthy walks within the woods. It was Mr. Mitterrand who appointed Mr. Bergé president of the Paris Opera, which opened a futuristic venue at the Place de la Bastille in 1989, in time to rejoice the 200th anniversary of the French Revolution.

Whilst critics questioned his credentials to run the opera, Mr. Bergé poured gas on the controversy when he fired Mr. Barenboim because the musical director of the Bastille Opera and changed him with Myung-Whun Chung, a Korean-American conductor who at the time was not well-known.

After that, hardly a month glided by at the opera with out disputes with singers and stagehands or with senior workers who left in a huff over Mr. Bergé’s autocratic model.

As opera czar, Mr. Bergé coordinated the Bastille Opera; the Palais Garnier, the well-known older opera home; and the Salle Favart, the normal residence of the Opéra Comique. He admitted that he had failed in a number of of his targets. As a substitute of the promised 250 opera performances a 12 months, he was not often capable of stage greater than 140. Throughout his 4 years at the helm of the Bastille, he mentioned he may consider solely two or three productions that have been definitely worth the worth of admission.

“The remainder, for one motive or one other, I haven’t appreciated at all,” he mentioned.

The critics typically agreed with him: The evaluations have been principally brutal.

Nonetheless, like a circus impresario, Mr. Bergé gleefully pointed to the big audiences at the Bastille Opera as vindication of his stewardship. “Individuals are inquisitive about this constructing, which is so talked about,” he mentioned. “Half of them by no means set foot in an opera home earlier than. But instantly, the opera has turn out to be the center of French cultural and political life. It’s laughable.”

Success at the field workplace was not sufficient to maintain Mr. Bergé within the job. Quickly after conservatives received a landslide victory in French parliamentary elections in 1993, a brand new Gaullist authorities removed Mr. Bergé and changed him with an interim director and then with Hugues Gall, the director of the Geneva Opera.

Mr. Bergé additionally started to have authorized issues linked to his enterprise offers. In 1994, he was indicted on fees of promoting practically $20 million of shares within the Yves Saint Laurent group earlier than the corporate introduced a 94 % plunge in web revenue in September 1992. Convicted of insider buying and selling, he was fined $600,000, which, on attraction, was decreased to $200,000.

Mr. Bergé’s sale of the company to Elf Sanofi solely added to the scandal. For his or her 43.7 % holding, Mr. Bergé and Mr. Saint Laurent have been paid $286 million, or $158 a share, nicely above the inventory’s $118 market worth proper earlier than the sale.

Since 1996 Mr. Bergé had been president of Sidaction, a fund-elevating group devoted to AIDS analysis and therapy. He was additionally a founding father of the French weekly Courrier Worldwide and the homosexual journal Têtu, and the chairman of the supervisory board at the newspaper Le Monde.

In March 2017, Mr. Bergé married his longtime partner, Madison Cox, a panorama architect and director of the Fondation Jardin Majorelle in Marrakesh, a part of the Fondation Pierre Bergé-Yves Saint Laurent in Paris. Mr. Cox survives him.

Most lately, Mr. Bergé was engaged on two museums devoted to Yves Saint Laurent that can open subsequent month: in Paris within the former premises of the high fashion home, and in Marrakesh in a new building subsequent to the Jardin Majorelle.

Age didn't mood Mr. Bergé’s powerful-minded assessments of himself and of others. Requested about an usually unflattering portrayal of his relationship with Mr. Saint Laurent within the 2014 biopic “Yves Saint Laurent,” he replied: “Imagine me, I used to be not pleased to be there, supporting Yves, throughout these occasions. I did that as a result of I used to be obliged to try this, as a result of I cherished him.”

And like one other regal determine, Louis XV, who allegedly asserted deluge would observe his demise, Mr. Bergé appeared satisfied that the world of vogue he helped create wouldn't outlive him.

“The time of Chanel, Balenciaga, Dior and, after all, Yves — nicely, that point is over,” he proclaimed in a 2015 interview with The New York Times. “To me, that complete trade now — all cash and advertising — it's all one thing like a lie.”

Correction: September eight, 2017

An earlier model of this obituary misidentified the king of France who was mentioned to have predicted deluge would observe his demise. It was Louis XV, not Louis XIV.