This is the same historical setting (the Ming dynasty under Zhu Di's reign) , and we find the same historical characters as the leads

Wu Jin Yan as the main actress, Yu Zheng as main producer and many other actors who are back here, with a very similar kind of story

Both stories are kinda about a Cinderella. Nevertheless, the Cinderella here is strong enough to stand up for herself and you can see those who made her suffer get their karmas in the end. And she has a handsome prince-not-so-charming who gives us just enough slap-and-kiss so that it would be interesting but not to the point where he’s a total jerk

Ghosts, reincarnations, mysteries, karma, do I really need to say more ?
Thai make good ghost stories

In both dramas, there are stories of reincarnation and ghosts. And the original novels were written from the same author

Both stories are about an arrogant and misogynistic man who meets a kind and beautiful woman that he "buys". She changes him. In both there are very good chilling scenes between the main couple

Schemes of a beauty is kind of a sequel to Beauties of The Emperor. You can see what Lu Zi (Joe Chen's character in Beauties) became in Schemes of a Beauty. Moreover, Luo Jin is playing the father (Emperor Gaozu) in Beauties and in Schemes, he plays the son, Liu Ying

In both, the famous historical character Wu Ze Tian is one of the main character

Both are adapted from the same novel. So, for those who are
interested in the chinese remake, you can try the taiwanese one : it should give you an idea of the new one

Adapted from the same novel. but beware : they're both REALLY different (and the movie is not half as good as the drama)

Love through a millenium is adapted from Queen In Hyun's Man

Both drama are about a girl who lives happily with her father until he remarries with an evil stepmother who has an evil daughter and who make the young girl's life a living hell.
Though in Cinderella's sister, it's about the stepsister who's not that evil