New documents filed in a court battle where $400 million is at stake reveal the reclusive life of copper heiress Huguette Clark.

You’ve heard of The Great Gatsby and Grey Gardens, but you probably haven’t heard of Clark -- and she wanted it that way. The very private heiress died in May at age 104. In the months before her death, MSNBC began investigating how her fortune was handled. Clark’s family had complained that her lawyer and accountant had cut them off from contact with her.

The New York Post has the story on the first documents in the case.

“Investigators ... are focused on the management of Clark’s $400 million fortune … As part of those probes, a judge ordered [her lawyer and accountant] to account for every penny they spent in Clark’s name as they handled her affairs … the 2,800-page accounting … offers the first detailed glimpse of the mysterious millionairess’ financial and emotional life.”

That document, which covers spending in the last 14 years of Clark’s life, reveals just how reclusive she had become. These photos are of her 52-acre, $24 million Connecticut estate, but she hadn’t been there in years. The New York Times explains.

“Mrs. Clark was from her 30s onward an antisocial socialite, an enigmatic figure whose closest companions were her mother and her dolls.  … She ate … crackers and sardines and watched television, most avidly ‘The Flintstones.’”

Indeed, she had a priceless collection of thousands of dolls and a 42-bedroom apartment on Fifth Avenue worth $100 million, but Clark had lived under an alias in hospitals since the 1980s, even when her health was good.

The document reveals that, while Clark was living in that simple hospital room, she was supposedly spending $1 million a month. In addition, her lawyer and accountant spent $123.6 million of her money in 14 years.

In a story from May, NBC explains how the pair first raised eyebrows.

“Wally Bock quietly arranged to sell Clark’s rare Stradivarius violin for $6 million, and her Renoir painting for $23.5 million. Now investigators want to know -- where did the money go?”

Clark’s lawyer and accountant were also left another $17 million in her will, but her family got nothing. For now, her assets are frozen as the legal battle continues.