Lady Eliza Spencer made headlines in early August after revealing her engagement to longtime boyfriend Channing Millerd during a scenic getaway in Santorini, Greece. The couple, together for over a decade, shared the news with romantic photos of the proposal on a candlelit terrace overlooking the sea — prompting many to ask: Who is Lady Eliza, and how does she fit into Britain's royal family?

Eliza is the niece of the late Diana, Princess of Wales, the previous wife of King Charles III. She is one of the four children of Charles Spencer, 9th Earl Spencer, Princess Diana’s younger brother, and his first wife, Victoria Lockwood, a former British model. Born in the UK in 1992, Lady Eliza was raised in Cape Town, South Africa, along with her twin sister, Lady Amelia Spencer, and younger brother Louis Spencer, Viscount Althorp. She also has an older sister, Lady Kitty Spencer.

The Spencer twins were largely kept out of the public eye during their upbringing. Eliza’s first major public appearance came at the 2011 royal wedding of Prince William and Catherine Middleton, where she attracted media attention alongside her sisters.

Now 33 years old, Lady Eliza is based in London and has carved out a successful career as a model. She has appeared in multiple international editions of Vogue — including Vogue Australia, Vogue Arabia, and Vogue Italia — and has worked with luxury brands such as Armani, Versace, Schiaparelli, Michael Kors, Chopard, De Beers, and Bvlgari. She is currently signed with Storm Management.

In March 2025, Eliza appeared on the cover of Tatler alongside her sisters Lady Amelia and Lady Kitty, marking their first joint magazine feature. Despite her aristocratic roots, she remains relatively low-profile, appearing mostly at fashion and society events with her siblings and their partners.

Her fiancé, Channing Millerd, is a South African entrepreneur. The two reportedly began dating in their early 20s and have maintained a private but long-term relationship.