After the lack of pomp of the 17th Century, Louis XIV, brought together the court of Versailles and luxury was re-established, for awhile, bringing with it extravagant fashion. Religious differences got in the way, and the pious Queen Maria Theresa disposed of the splendor. It was also during this time that whalebone replaced wood or metal supports.
Whale bone is the name given to the long horny plates or blades that are analogous to teeth.
The busk was still flamboyant and a treasured piece. With the addition of whale bone, shoulder straps where introduced because the body stopped under the breast. The straps held the stays in place and the breasts up.