Sienna Miller & Pippa Middleton Attend Memorial Service for Sir David Frost

Sienna Miller joins a large group of individuals who arrive to celebrate Sir David Frost‘s life at Westminster Abbey on Thursday (March 13) in London, England.

The 32-year-old actress was joined at the event by Catherine, Duchess of Cambridge‘s younger sister Pippa Middleton.

In case you did not know, David Frost was a legendary British broadcaster, who was best known for his interviews with President Richard Nixon. He passed away at the age of 74 several months ago.

10+ pictures inside of Sienna Miller and Pippa Middleton at the memorial service…