The portrait depicts Olivia Boteler Porter, lady-in-waiting to Charles I's wife Henrietta Maria.

BBC: Van Dyck painting 'found online'

Kate Middleton, also featured on this list last year, is still a lady-in-waiting.

FORBES: Sara Blakely, Lena Dunham And The 'Power Women' To Watch In 2013

"Like perhaps, 'don't go out tonight if you're tired' is almost enough for her to go out tonight, " her Lady-in-waiting, Dame Frances-Campbell Preston explains.

BBC: Daily life of the Queen Mother

Brady said, adding that her initial meeting with the first lady was in November 1993, when President Clinton signed into law a five-day waiting period to enable a background check on prospective gun buyers.

CNN: Clinton, Lazio make 'soft money' pledges