The Gilded Age Season 3 is broadening out its narratives with new family dynamics, and one of the big casting announcements has been spotted by viewers who have been keeping up for the long haul.

Their 1895 divorce sent shockwaves through New York society—and changed the public understanding of divorce in the process.

Only time will tell if the life of Consuelo, Duchess of Marlborough hints at what's to come for Gladys on the HBO period ...