Trachtenberg referred to the British princess as "my girl E" and a "wonderful human" in Instagram posts through the years

Eugenie became friends with Trachtenberg when she lived in New York City and worked for the art auction start-up Paddle8 from 2013 to 2015. Their friendship first became public in December 2013, when they were photographed courtside at a Knicks game alongside actor Michael K.

Princess Eugenie is mourning the death of Michelle Trachtenberg. The youngest child of Prince Andrew and Sarah Ferguson, the Duchess of York, the 34-year-old princess took to her Instagram Story on Thursday to pay tribute to the late “Gossip Girl” star,