The second story windows overlooking our Grand Ballroom are affectionately known as the Grandmother Windows because the grandmothers used to chaperon the dances in the Ballroom back 'in the day' when young ladies could not go out without a chaperon, and dances were a very common entertainment.
Today they are often utilized by brides to throw their bridal bouquet to the unmarried women in the room. Here you can see that tradition carried out.
Please excuse the beginning of the video. I am still learning and was not entirely ready when this event occurred.