The 9th Earl Spencer shared a shot of a monument honoring Diana

Charles Spencer in 2015; Princess Diana in 1987. Photo: Amanda Edwards/WireImage; Georges De Keerle/FSP/Liaison Agency

Charles Spencer is giving a glimpse of Princess Diana’s memorial at the Spencer family’s Althorp estate.

On Tuesday, the 9th Earl Spencer, 59, posted a picture of the memorial honoring his late sister at Althorp. Diana, who died in a Paris car crash in 1997 at age 36, is buried at the Spencer family’s ancestral home in Northamptonshire, England.

“A special corner of Althorp, this morning,” Charles wrote on Instagram on Tuesday.

While Diana’s gravesite, which is located on an island within the Round Oval Lake.

The photo, which was taken from a distance, shows the monument in autumn light. The Grecian-style memorial is topped by Diana’s name and features four columns, opening to show a silhouette of the late princess flanked by two tablets. One displays the concluding tribute the Earl Spencer gave at Diana’s funeral at Westminster Abbey, and the other features a quote from Diana about her deep love for charitable work.

Charles Spencer Shares Childhood Photo with Sister Princess Diana on 26th Anniversary of Her Death

Charles, an author, historian and podcast host, walked behind Diana’s coffin during her funeral procession with Prince William, Prince Harry, now-King Charles and Prince Philip. Later, he delivered a fiery eulogy condemning the treatment she’d faced from the tabloid media and honoring her extraordinary legacy of compassion and care.

The events surrounding Diana’s death are explored in the sixth and final season of The Crown, which premiered earlier this month.

The Earl Spencer is known to pay tribute to Diana on social media for occasions like her birthday and All Soul’s Day. He also marked the 26th anniversary of her death over the summer.

On Aug. 30, the eve of the anniversary, he posted a throwback photo of himself and Diana as children. The image, posted without a caption, showed Charles standing next to his much taller sister — who wore a pink and white striped dress — as she put an arm around his shoulder.

In his memoir, Spare, Prince Harry recalled taking his wife, Meghan Markle, to Diana’s burial place for the first time in 2022 on the 25th anniversary of his mother’s death.

Princess Diana’s Final Year: From Her Famous Landmine Walk to Summer in St. Tropez

An aerial view of the burial site of Diana, Princess of Wales at Althorp.David Goddard/Getty

“I helped Meg into the boat. It wobbled, but I quick-stepped to the middle, got it righted in time,” Harry wrote in the text, published in January. “As she found a seat in the stern, I took up the oars. They didn’t work. We’re stuck. The thick mud of the shallows had us in its grip.”

“Uncle Charles came down to the water’s edge, gave us a little shove,” he continued, referring to his mother’s brother. “We waved to him, and to my two aunts. ‘Bye. See you in a bit.’ “

“No visit to this place was ever easy, but this one… twenty-fifth anniversary,” Prince Harry wrote in Spare. “And Meg’s first time. At long last, I was bringing the girl of my dreams home to meet mum.”

Princess Diana attends a dinner at the British Embassy in Washington, DC, November 1985.Terry Fincher/Princess Diana Archive/Getty

Can’t get enough of PEOPLE’s Royals coverage? Sign up for our free Royals newsletter to get the latest updates on Kate Middleton, Meghan Markle and more!

“We hesitated, hugging, and then I went first. I placed flowers on the grave. Meg gave me a moment, and I spoke to my mother in my head, told her I missed her, asked her for guidance and clarity,” Prince Harry wrote. “Feeling that Meg might also want a moment, I went around the hedge, scanned the pond. When I came back, Meg was kneeling, eyes shut, palms against the stone.”

“I asked, as we walked back to the boat, what she’d prayed for,” he added. “Clarity, she said. And guidance.”