Victoria Beckham and David Beckham are instantly recognisable across the globe.MORE: Victoria Beckham reveals £31m London home as you've never seen it beforeBut this week, the mum-of-four shared a photo of one of the rarely-seen members of her family. Taking to her Instagram Stories on Tuesday, Victoria posted a rare snapshot of her niece, Libby Adams.READ: Victoria Beckham praises son's girlfriend in sweet new postMORE: Victoria Beckham parties with pals in never-before-seen pictures from Brooklyn's weddingThe image was taken in Miami, Florida and shows Libby on a boat, looking straight at the camera, and dressed in a black bikini top and crocheted cover-up.