Not usually into this kind of pairing, but I'd like to try reading a manga or two with this scenario. Basically I'm looking for mangas to read that have a princess and romance involved with her. It could be with a knight (bonus points for that) or anyone, really. Even better if it's some kind of forbidden romance, but it's not necessary. Any suggestions are appreciated! I'm also not big on smut, but I can bear with it.

Apothecarius Argentum Princess+her apothecary/former food tester
Reimei no Arcana Princess+prince

There is a princess tag

I would say Sailor Moon. And about 200 other manga.

Zettai Heiwa Daisakusen
Adarshan no Hanayome
Tokage Ouji
Shiranai Kuni no Monogatari

[img]http://i151.photobucket.com/albums/s138/hollowbast/banner-1.jpg[/img]

Princess is the best 'princess' romance I could think of.
Sweety gem
Ludwig kakumei
Chronicles of the Grim Peddler
Joousama no Tamago
Kago no Naka

[img]http://img803.imageshack.us/img803/6167/avvy.png[/img]
Rape is imminent.

I really like Evyione.

Strange Dragon(she's a princess in the beginning before she becomes the queen)
Okobore hime to entaku no kishi
Aoki umi no toraware hime
Himegimi to sanbiki no kedamono
Soredemo sekai wa utsukushii

Akatsuki no Yona because it hasn't been said yet. Romance isn't the main focus though, but definitely there.