A view of Zara Phillips' engagement ring after her engagement was announced, in Gloucestershire, England, Tuesday Dec. 21, 2010. Prince William and Kate Middleton will soon have company on the royal wedding calendar. Buckingham Palace announced Tuesday that Zara Phillips, Queen Elizabeth II's eldest granddaughter, is engaged. Phillips, an accomplished equestrian, said she was shocked but "very happy" that her rugby-playing boyfriend Mike Tindall had proposed. (AP Photo/Tim Ireland, PA) UNITED KINGDOM OUT NO SALES NO ARCHIVE

Photo by: Tim Ireland

A view of Zara Phillips' engagement ring after her engagement was announced, in Gloucestershire, England, Tuesday Dec. 21, 2010. Prince William and Kate Middleton will soon have company on the royal wedding calendar. Buckingham Palace announced Tuesday that Zara Phillips, Queen Elizabeth II's eldest granddaughter, is engaged. Phillips, an accomplished equestrian, said she was shocked but "very happy" that her rugby-playing boyfriend Mike Tindall had proposed. (AP Photo/Tim Ireland, PA) UNITED KINGDOM OUT NO SALES NO ARCHIVE