Princess Alexandra of Hanover took style notes from her late grandmother Grace Kelly. Alexandra, 27, was as good as gold in a beaded vintage Givenchy dress once worn by Kelly, who died at age 52 in 1982.
In the photo shared via Instagram, Alexandra stunned in the dress featuring thick straps, a scoop neck, a fitted bodice and a small train. The royal, who is the daughter of Princess Caroline, accessorized with a black clutch, a delicate n…