Although I think Mulan and Jasmine would be set in a time much earlier than Cinderella.

Noooo, Mulan & Jasmine are wayyy before the others.

Well I think so , but Cinderella and Ariel am sure they do.

I think Mulan is 7th to 9th century. Same probably goes for Jasmine.
Aurora is 14th century. Snow White and Rapunzel are probably 16th or 17th century.
Belle, Cinderella and Ariel are most likely 18th or 19th century.

i'll look up for this and i'll write a comment.

do you even watch the movies? you just need to look at the details, to understand that they didn't live at the same time
i mean, look at jasmine and mulan. they obviously lived way before the others. and ajotma is probably right about snow, rapunzel, belle, cinderella and ariel

dude Jasmine is like ...... at the beginning of Islam, like 1300 years ago !!!!!!

I don't think so. Most of them lives in different centeries.I know very well Pocahontas takes place in 1607,Sleeping Beauty takes place in 14th century,The Little Mermaid& BATB & Cinderella takes place around probley 16-17 like the other person metioned.And Snow White and Tangled in 1800's while Mulan and Aladdin takes place way before the other princess movies.I'm not exact sure what century but it's way up there maybe before B.C or around A.D.I can't be certain but it was around then.So to be technical Mulan and Jasmine would be the oldest princesses as because of the time periods thier movies takes place in. And that make Snow White and Rapunzel as the youngest,but that's technical terms of reality.

Not all of them live in the same time. You need to rewatch the movies because they give you hints of what century they live in.
Aurora lives in the 14th century. Tiana lives during the 1920s Jazz Age. Ariel and Belle were from the 18th century. Cinderella was from the 19th century. Pocahontas lived in 1607-some time before the Puritans came to America. Mulan lived in Ming Dynasty. Snow White came from the late middle ages. Rapunzel lived during the late Renaissance Age. Jasmine lived in the early middle ages.

Maybe, but I'd say Ariel is more modern than the rest.