Princed is a Prince of Persia 1 level editor for DOS.
Its official website can be found here.
Download for DOS: priv25-english.zip (33kB)
(For translated versions, see the official website.)
Version 2.5 FINAL was released by Enrique P. Calot on 29 April 2003.
Wine users may need to install an additional DLL file:
$ winetricks mfc42