On Saturday, Dior celebrated the @VenetianHeritage foundation's 20th anniversary with the ‘Tiepolo Ball’, held at the fabulous Palazzo Labia in Venice, Italy. Here, Sienna Miller appears in a #DiorCouture bustier gown in ‘sovrarizzo’ handwoven velvet by @TessitureBevilacqua and a taffeta cape, both designed by #MariaGraziaChiuri especially for the occasion.? #DiorBall?