'The Gilded Age' opened the door for a crossover with 'Downton Abbey' following the big wedding episode in season 3. While speaking to PEOPLE, Julian Fellowes, creator of both shows, acknowledges that a young version of the Dowager exists in England at this time, while the cast is game for merging the two series.
https://people.com/how-the-gilded-age-opens-the-door-for-a-potential-cr…