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.

In a moment straight out of a fairytale, Princess Diana's lookalike niece, Lady Eliza Spencer, is officially engaged to her longtime boyfriend Channing Millerd, and the internet can’t get enough of the dreamy Greek backdrop.