With Season 4 of The Crown featuring the messy love triangle of Prince Charles, Princess Diana and his mistress Camilla Parker Bowles, her celebrated, and tragic, life is being revisited with fresh eyes.

Now a photography site, Shotkit, is revealing the most expensive paparazzi photo ever sold, and of course, it’s of Princess Diana and her boyfriend, Dodi Fayed. The $6 million photo was taken in July 1997, just a month before both of them would perish in a high-speed car crash in Paris. Knowing this timeline makes the fleeting moment of two lovers leaning in to kiss each other that much more heartbreaking.