Casting

Diana Bridgerton was Daphne's twin sister. The two were absolutely identical (though not in looks) and supported each other in everything.

But what happens when Diana falls for a Prussian Prince? And how will she react to Daphne's plan to seduce him so that she might anger the Duke of Hastings?

Diana has always put Daphne and the Bridgerton name before all else, allowing Anthony to guide her in the ways of matrimony. But perhaps it's time she takes her future into her own hands.