She makes a heck of alot of trouble for Gothel, even looks like Gothel went slightly...mad, I guess you could say.
Also, her actual parents had trouble caused for them too, and though it wasn't caused by Punzel, it was still revolving around her...

Rapunzel second. I might change my vote; both she and Ariel do.

^ What she said

and ariel

Doesn't really need explaining ---------------------------->

She only caused him to turn into a seaweed and gave control of his kingdom to a seawtich. NBD

obviously

No need to even ask me.

You might as well just put a sticker on this pick saying "PICK ARIEL IT'S OBVIOUS"

Ariel I say was really the only one who caused the most trouble.She is very headstrong and has disobyed her father more than any times you can count, not just in the movies but in the series as well.She has repeatly gone to the surface more than once and has dealed with humans and human objects against her fathers will just to name a few.The other princesses pretty much obeyed thier parents to degree but most of the time obeyed,but Ariel hardly obeys her father.

Definitely.She has no fear of her father and she does the opposite of all the things her father says to her!

well, she always runs off and jumps off cliffs, but Ariel's a close second. :)