From austenonly.com/2011/04/24/a-rather-different-royal-wedding-that-of-princess-charlotte-and-prince-leopold/.
These are images of Princess Charlotte Augusta's wedding dress seen in the last image.
Keywords: 1816, Princess Charlotte of Wales, Welf family, Wettin family, Princess, British, sweetheart neckline, bows, elbow length full sleeves, waist band, Empire low waistline, close skirt, tablier, ruffles, train, wedding dress