Royalty embraced the “Bertha” style..

.. and applied the ornament to Court fashion.  Evening wear was reserved for the wealthy and elite as this era had much conspicuous class disparity, particularly in Europe.

(1851 Princess Charlotte of Belgium sports the newly introduced hoop, low ‘V’ waistline, and “Bertha” neckline with lovely vertical pleats and lots and lots of lace from – you guessed it – Belgium!)