NOTE: Best subtitles for The Princess' Man are on Dramafever .... and Gooddrama (but video quality is not high) Other streaming sites like Kissasian and Dramacool have subtitles w/ overly complex English, in both structure and vocabulary :((
@Panda Dong Yi has a female lead with good values. I liked the character a lot. As for the story, it could've been told in fewer episodes. Overall, it's a decent historical with a great OTP. As for Queen Seon Deok, it's on my list along with Jewel in the Palace.
@Rainruma I agree with your saying that some historicals mentioned here are excellent but low on romance.