Princess Eugenie is mourning the loss of her “special friend,” actor Michelle Trachtenberg. The royal posted a moving tribute to the late actor on her Instagram Story this week. Trachtenberg, 39, was confirmed dead on Wednesday after her mother discovered her in her New York City apartment.

The pair had reportedly been friends since meeting in the early 2010s in NYC, with the royal sharing a framed photo of the two along with a touching tribute.

Buffy the Vampire Slayer and Gossip Girl actress Michelle Trachtenberg was found dead Wednesday at her New York City apartment. Police sources confirmed Trachtenberg's death to People, ABC and the New York Post.

Actress Michelle Trachtenberg, known for her role in "Gossip Girl," was found dead in a New York City luxury apartment building by the NYPD. She was 39.

Michelle Trachtenberg, an American actor known for her roles in the television series "Buffy the Vampire Slayer" and "Gossip Girl," died on Wednesday, according to her public relations team. "It is with great sadness to confirm that Michelle Trachtenberg has passed away.