I have a Butterick Making History pattern #6631 that features a regency, Jane Austen or Bridgerton costume.  The package contains instructions and patterns to make the following:

• Close-fitting, lined jacket, above waist, has raised neck, long sleeves with shaped hem, hooks and eyes and purchased marabou trim.
• Dress, evening length, has close-fitting bodice, raised waist, back princess seams/buttons, back bow/pleats, above elbow sleeves and slightly flared skirt. A: contrast bodice, bow, bottom drape, purchased flowers, pearl trim, ribbon trim, headpiece and gloves. B: contrast overdress. A, B: purchased lace trim.

This pattern is for adults misses' sizes 18, 20 and 22. This is an out of production, uncut pattern - the package has some wear and priced accordingly. It is from a smoke-free home and shipping is free in the U.S. Please check my other listings - I have many other patterns and will be glad to discount multiple purchases (10% off for two items, 15% off for three items and 20% off for four or more items).