In addition to her sister, Ms. McClintock is survived by her son. Her longtime partner, Ben Golluber, who was chief financial officer of the company, died in 1998.

Ms. McClintock retired from the day to day management of her company in 2013, only to return a year later.

Since the early 1980s, the company headquarters were in a commercial building in San Francisco’s Potrero Hill neighborhood, but Ms. McClintock sold the space in about 2016 and thereafter ran the business from her home office.

She lived in a Queen Anne Victorian house in Pacific Heights, which she bought from the filmmaker Francis Ford Coppola. With a decorator’s help she turned it into a romantic fantasy, with Venetian chandeliers, billowing pink satin curtains, inlaid marble floors and Aubusson carpets — just the right backdrop for the Old World fashions she favored.

“I have a romantic feeling about life,” Ms. McClintock told a reporter in 2007. “I like Merchant-Ivory movies and candlelight and beautiful rooms. I like the patina of age.”

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