Rest Well Karl..

(courtesy of The New York Times)

Karl Lagerfeld, the most prolific designer of the 20th and 21st centuries and a man whose career formed the prototype of the modern luxury fashion industry, died on Tuesday in Paris.

Though his birth year was a matter of some dispute, Mr. Lagerfeld, who lived in Paris, was generally thought to be 85. His death was announced by Chanel, with which he had long been associated.

“More than anyone I know, he represents the soul of fashion: restless, forward-looking and voraciously attentive to our changing culture,” Anna Wintour, editor of American Vogue, said of Mr. Lagerfeld when presenting him with the Outstanding Achievement Award at the British Fashion Awards in 2015.

Creative director of Chanel since 1983 and Fendi since 1965, and founder of his own line, Mr. Lagerfeld was the definition of a fashion polyglot, able to speak the language of many different brands at the same time (not to mention many languages themselves: He read in English, French, German and Italian).

In his 80s, when most of his peers were retiring to their yachts or country estates, he was designing an average of 14 new collections a year, ranging from couture to the high street — and not counting collaborations and special projects. “Ideas come to you when you work,” he said backstage before a Fendi show at age 83.

His signature combinations of “high fashion and high camp” attracted admirers like Rihanna; Princess Caroline of Monaco; Christine Lagarde, the managing director of the International Monetary Fund; and Julianne Moore.

Mr. Lagerfeld was also a photographer, whose work was exhibited at the Pinacothèque de Paris; a publisher, having founded his own imprint for Steidl, Edition 7L; and the author of a popular 2002 diet book, “The Karl Lagerfeld Diet,” about how he had lost 92 pounds.

His greatest calling, however, was as the orchestrator of his own myth.

A self-identified “caricature,” with his dark glasses, powdered ponytail, black jeans, fingerless gloves, starched collars, Chrome Hearts jewelry and obsessive Diet Coke consumption, he achieved such a level of global fame — and controversy — that a $200 Karl Barbie doll, created in collaboration with the toymaker Mattel, sold out in less than an hour in 2014.

He was variously referred to as a “genius,” the “kaiser” and “overrated.” His contribution to fashion was not in creating a new silhouette, as designers like Cristobal Balenciaga, Christian Dior and Coco Chanel herself did.

Rather, he created a new kind of designer: the shape-shifter.

That is to say, he was the creative force who lands at the top of a heritage brand and reinvents it by identifying its sartorial semiology and then pulls it into the present with a healthy dose of disrespect and a dollop of pop culture.

Not that he put it that way exactly. What he said was: “Chanel is an institution, and you have to treat an institution like a whore — and then you get something out of her.”

This approach has become almost quotidian in the industry, but before Mr. Lagerfeld was hired at Chanel, when the brand was fading into staid irrelevance, kept aloft on a raft of perfume and cosmetics, it was a new and startling idea.

That he dared act on it, and then kept doing so with varying degrees of success for decades, transformed not only the fortunes of Chanel (now said to have revenues of more than $4 billion a year) but also his own profile.

And it cleared a new path for designers who came after, from Tom Ford (who likewise transformed Gucci) to John Galliano (Dior), Riccardo Tisci (Givenchy, Burberry) and Tomas Maier (Bottega Veneta).

Mr. Lagerfeld showing one of his ball gowns in 1979

A ‘Fashion Phenomenon’

Those who wanted to dismiss Mr. Lagerfeld referred to him as a “styliste”: a designer who creates his looks by repurposing what already exists, as opposed to inventing anything new. But he rejected the idea of fashion-as-art, and the designer-as-tortured genius. His goal was more opportunistic.

“I would like to be a one-man multinational fashion phenomenon,” he once said.

Indeed, his output as a designer was rivaled only by his outpourings as a master of the telling aphorism — so much so that his quotations were collected in a book, “The World According to Karl,” in 2013.

Some choice excerpts: “Sweatpants are a sign of defeat,” and “I’m very much down to earth. Just not this earth.”

Whether his statements were true was immaterial (anyway, it was conceptually true, or true at that moment). The truth could be a fungible concept to Mr. Lagerfeld, who was fond of taking creative license with the past. Sources have differed on his birth year, for example. Was it 1938, as Chanel believed, or 1933, as a book by the writer Alicia Drake asserted? Or was it 1935, as he told the magazine Paris Match in 2013? (The Hamburg Genealogical Society says he was born on Sept. 10, 1935.)

His personal proclivities were a constantly mutating collection of decades, people and disciplines. His one great fear was of being bored. His conversations (or monologues) could, in almost one breath, bounce from Anita Ekberg romping in the Trevi fountain, to how rich women in the 1920s slept under ermine sheets, and then to the Danish fairy tale illustrator Kay Nielsen. His one blind spot was his own mortality, which he refused to acknowledge.

As he said in the 2008 documentary “Lagerfeld Confidential”: “I don’t want to be real in other people’s lives. I want to be an apparition.”

Karl-Otto Lagerfeld was born in Hamburg to Otto Lagerfeld, a well-off managing director of the German branch of the American Milk Products Company, and the former Elisabeth Bahlmann. His mother was Otto’s second wife, and Karl had both an older half sister, Thea, and an older sister, Martha Christiane.

His mother was, by all accounts, the single most formative influence on her precocious son, who often reported that he had disliked his childhood. His father moved his family to a small town in the north of Germany during World War II, and Karl, who was given to wearing a formal suit and tie to school, did not exactly fit in.

“When I was 14 I wanted to smoke because my mother smoked like mad,” he was quoted as saying. “But my mother said: ‘You shouldn’t smoke. Your hands are not that beautiful, and that shows when you smoke.’ ”

She was responsible, he said, for his fast-forward manner of speech and voluminous conversational references. In an onstage interview at Lincoln Center in 2013, he told the actress Jessica Chastain that when his mother had asked a question, he “had to answer quickly, and it had to be funny.”

“If I thought of something to say 10 minutes later,” he said, “she would slap me.”

Karl escaped to Paris as a teenager, and though he did not go to art school or receive a classic fashion education, he entered, in 1954, a fashion competition called the International Wool Secretariat (now reborn as the International Woolmark Prize) and won the coat category; Yves Saint Laurent, also a young designer, won in the dress category that year.

Mr. Lagerfeld was hired at the couture house of Pierre Balmain and remained there for three years until he left for Jean Patou. He stayed at that house for five years, until deciding to trade the more rarefied environs of the couture for a freelance career in the emerging world of 1960s ready-to-wear.

He went on to do freelance design work for Krizia, Ballantyne, Charles Jourdan and Chloé, where he stayed for over 10 years and became close to the founder, Gaby Aghion, developing his trademark irreverence for style’s sacred cows.

The approach could also be seen at Fendi, starting in the mid-1960s, when Mr. Lagerfeld was brought in by the family to transform the brand from boring bourgeois furrier into hip fashion name.

Mr. Lagerfeld in New York in 2002, when he received a lifetime achievement award at the Council of Fashion Designers of America’s 40th awards gala

And Now, ‘Fun Fur’

He refused to treat such luxury pelts as mink and sable too preciously. Instead he shaved them, dyed them, tufted them and otherwise created the concept of “Fun Fur,” which gave the brand its enduring double F logo.

Silvia Fendi, the only member of the third generation still engaged with the brand, said that even as a child, “when Karl came” she knew “something special was going on and I should pay attention.”

e also started collecting: furniture, books, magazines — even apartments. He would delve deep into decades and their aesthetic movements, from Art Deco to Memphis, the Bauhaus to the space age, and then discard them, auctioning off his carefully curated acquisitions without nostalgia or emotion. (It was a characteristic of his personal relationships too, according to those who knew him.)

Mr. Lagerfeld left Chloé in 1982 and took on Chanel — returning first to the haute couture and, the next year, to ready-to-wear. It proved an alchemic combination of designer and brand, given the house’s rich iconography (ropes of pearls, camellias, bouclé, Cs), which Mr. Lagerfeld treated like toys that were his for the twisting.

A photograph of the original supermodels — Linda Evangelista, Claudia Schiffer, Christy Turlington — as a motorcycle gang in pastel colored Chanel bouclé minisuits and biker caps captured his iconoclasm. Women were breaking glass ceilings and refusing to play by the old rules, and Mr. Lagerfeld transformed Chanel into the armor they could wear to do it.

His work so clearly expressed the ethos of the moment that his early “muse,” the model Ines de la Fressange, was later chosen as the model for a new bust of Marianne, the symbol of the French Republic — at which point Mr. Lagerfeld, incensed at the idea of having to share her, ended their professional relationship. (They made up years later.)

Celebrities flocked to Chanel, and to Mr. Lagerfeld, who seized on the marketing possibilities. He teamed up with the movie director Baz Luhrmann and the actress Nicole Kidman to make short promotional films; Mr. Lagerfeld later directed the actresses Cara Delevingne and Kristen Stewart and the singer Pharrell Williams in his own minifeatures about Chanel.

Mr. Lagerfeld in Berlin in 2015 with a painting of Choupette, his Birman cat.

As social media exploded, Mr. Lagerfeld understood early on how widely disseminated images had the power to transform a show for the trade into a show that would resonate in the digital wilderness. He trucked in a 265-ton iceberg from Sweden for one collection, and built an airplane hangar, a brasserie and a supermarket (stocked with Chanel dishwasher powder and Chanel pasta) for others, all in the confines of the Grand Palais, his Parisian presentation venue of choice.

A Cat in the Lap of Luxury

While his professional life became ever grander, however, his personal life remained a mystery. Mr. Lagerfeld lived alone in a Left Bank apartment crowded with books and clothes, sharing it only with a Birman cat called Choupette, who became as famous as her master, with her own maids, pillow, diamond necklaces and Instagram account.

He estimated his library at 300,000 volumes, and he told Susannah Frankel of the British newspaper The Independent that he had more than a thousand of his signature white Hilditch & Key shirts.

He traveled with an ever-shifting entourage, though his godson, Hudson Kroenig, was something of a constant in recent years. Hudson’s father is Brad Kroenig, one of Mr. Lagerfeld’s favorite male models (Mr. Lagerfeld used to accessorize his Chanel shows with the occasional man), and Hudson would often appear on the runway with his godfather to take a bow.

Ironically, though he started his own brand in 1984, the Lagerfeld line never found the same success or popularity as Chanel and Fendi, leading naysayers to suggest that Mr. Lagerfeld worked best within the framework of someone else’s vision. His partisans said he simply did not have enough time. (His brand changed ownership a few times; investors included PVH, Apax Partners and Tommy Hilfiger.)

Though rumors often circulated that Mr. Lagerfeld was sick and about to retire, he never did. He had a lifetime contract with both Chanel and Fendi, and he exercised it. If he stopped, he would say when asked, he might as well stop breathing.

Mr. Lagerfeld was responsible for so many shows, stores and events that in 2017, Anne Hidalgo, the mayor of Paris, awarded him the city’s highest honor, the Medal of the City of Paris, for services to the metropolis.

Toward the end of his career, fashion was troubled by questions over whether it was demanding too much of its designers, but Mr. Lagerfeld had no truck with any complaints.

“Please don’t say I work hard,” he said to Ms. Frankel of The Independent. “Nobody is forced to do this job, and if they don’t like it they should do another one. People buy dresses to be happy, not to hear about somebody who suffered over a piece of taffeta.”

His pretensions were not to the eternal, but to the ephemeral. In the end, however, with the personal brand that was Karl Lagerfeld, he may have achieved both.