tragedy romance historical drama

Hey so I've recently watched my first historical drama, Scarlet Heart Ryeo, and I loved it. I then caught up to Hwarang which I also loved. I was wondering if someone could please recommend good tragedy and romance historical dramas of the same vein.

Scholar Who Walks The Night! 

Princess Man, it's like Romeo and Juliet sageuk time
http://mydramalist.com/2591-the-princess-man

http://mydramalist.com/2785-deep-rooted-tree

I'm really tempted to recommend Queen Seondeok. It's 62-episode long, though, and it's heavier on  the political stuff than romance--at least much heavier than Scarlet Heart Ryeo and Hwarang. Oh, and maybe Ja Myung Go (39 episodes)?

Princess' man.

The moon that embraces the sun

Both Scarlett Heart and Hwarang have a strong romantic story line, so I also vote for Empress Ki.