Princess Eugenie calls Michelle Trachtenberg her 'special friend' in emotional tribute on actress' death

OLD WINDSOR, ENGLAND: Princess Eugenie paid an emotional tribute to her "special friend" Michelle Trachtenberg in a social media post after the actress' tragic death at the age of 39.

The 'Gossip Girl' alum was declared dead in her New York City apartment on Wednesday, February 26, after her mother found her "unresponsive, lying on her back in bed," which caused her to alert police and paramedics, TMZ reported.

Princess Eugenie pays tribute to 'special friend' Michelle Trachtenberg

Princess Eugenie took to her Instagram Stories on Thursday, February 27, to pay an emotional tribute to her friend Michelle Trachtenberg. She posted an old photo of them together and wrote, "Goodbye, special friend. You are so missed."

The 34-year-old royal continued, "Thank you for so many memories of laughter and fun. You were so thoughtful and generous and soooo funny."

"My favorite was listening to you order food, always done with precision so you got exactly what we all wanted. I’m thinking of you up there friend, of your spirit that was so bright and your joy you brought so many," the niece of King Charles added.

Notably, Trachtenberg and Eugenie's friendship dates back to 2013 when the princess lived in New York City and the duo attended a New York Knicks basketball game together.

However, the royal went back to England a few years later after she married Jack Brooksbank, according to Parade.

Trachtenberg posted a picture of the two on Instagram in March 2016 and captioned it, "There are few people in life that you meet that you know are true and real. This lady happens to be one of them. Friends really do mean a lot. Happy #stpatricksday May luck of love and friends be with you."

According to TMZ, an official cause of Trachtenberg's death may not be out as her family doesn’t want an autopsy to be conducted.

The medical examiner explained that an autopsy would have been performed if there were any suspicion of foul play, but there wasn't any in her case.

Michelle Trachtenberg's pal reveals she had pulled back from Hollywood before death 

Michelle Trachtenberg had kept herself away from Hollywood and lived a life away from what made her famous. A close friend of the actress told PEOPLE that she had gradually taken "a step away from Hollywood" in recent years.

The source said, "She just had the classic story of childhood stardom. She had a couple roles throughout the last decade, but nothing of real note."

"She really pulled back from Hollywood in the last eight years. She was a great girl who just never got her footing, just like many childhood stars," the insider added.

The source continued that the actress "was a recluse and didn't have many friends."

They added, "She was an overall great girl. She was always kind, supportive, and loving. It's so sad. It really is. She was an amazing person."

Another source further said that Trachtenberg had been struggling emotionally and physically in the past year. They added, "She was really, really sick and open with those in her circle about how much she was struggling. She was pale, gaunt, very thin, and dealing with health issues."