The difference between ptolemy iii and ptolemy xiv was: ptolemy iii ruled over a kingdom of peace and ptolemy xiv oversaw the development of beautiful architecture. ptolemy xiv married a human black widow while ptolemy iii expanded his kingdom to babylonian. cleopatra and mark antony partnered with ptolemy xiv but ptolemy iii built a force with the egyptians. ptolemy iii ruled over a peaceful kingdom and ptolemy xiv attacked octavian