Princess Diana's niece Lady Eliza Spencer is engaged to Channing Millerd. See the photos of the proposal in Santorini, Greece, and her twin sister's reaction.

Eliza revealed that her longtime boyfriend had finally popped the all-important question after a decade of dating.

After nearly a decade together, Lady Eliza Spencer—the niece of Princess Diana—announced her engagement to Channing Millerd on July 31. Spencer posted a carousel of photos to Instagram, showing off her ring and captioning the shots, “Forever and Ever.”