DUBAI: Tiffany Trump showed off a custom-made gown by Lebanese designer Saiid Kobeisy at the state banquet held during US President Donald Trump’s visit to the UK on Wednesday. Trump’s 31-year-old daughter showed off a blue quartz custom-made haute couture gown by the Lebanese designer. (AFP) The lavish white tie event, hosted at Windsor Castle, saw 160 guests gather at Windsor Castle, with King Charles and Queen Camilla in attendance. Trump’s 31-year-old daughter showed off a blue quartz couture gown, with a beaded clutch also by Kobeisy.