Meghan's nod to the Commonwealth also paid tribute to the most special dress her new grandmother-in-law ever wore. Queen of the World highlights how Elizabeth II was determined to show the flowers of all the Commonwealth countries on her coronation gown. The original design only included the rose, shamrock, thistle, and leek, emblems of the UK countries. But the Queen told dressmakers to include the blooms of all the handful of nations then in the Commonwealth. The finished product has been described as the most important British dress of the 20th century.