Diana's brother says Memorial Walk awakens poignant memories

Thousands of people paid tribute to Princess Diana on her birthday.

A day before her birthday, Diana's brother shared a picture from Diana Process of Wales Memorial Walk in London.

Spencer said he found himself "inadvertently on this walk today."

“Poignant” is the word, I guess - particularly on

the day before Diana’s birthday," he wrote.

William, now a father of two young children, and Harry walked behind their

mother's coffin as the procession made its way through the streets of London on

Sept. 6, 1997. They were accompanied in the procession by their father, Prince

Charles, and their grandfather, Prince Philip, in addition to Spencer.