Lady Eliza Spencer, the 33-year-old socialite who bears a striking resemblance to her late aunt Princess Diana, is officially off the market. The blonde beauty and her longtime boyfriend, South African businessman Channing Millerd,

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.