Princess Eugenie is among those mourning Michelle Trachtenberg's death at age 39, and Trachtenberg previously posted about their friendship on social media.

"Goodbye special friend. You are so loved and missed. Thank you for so many memories of laughter and fun. You were so thoughtful and generous and soooo funny: My favourite was listening to you ...

"Goodbye special friend. You are so loved and missed," Eugenie wrote. "Thank you for so many memories of laughter and fun. You were so thoughtful and generous and soooo funny." The royal fondly ...