I've removed the section, which was totally weird.  The problems listed seem to be completely random.  We don't even know the order of kings or have any idea of the length of their reigns for centuries of Egyptian history.  Even for dynasties we know well, like the 18th, there's no fully agreed upon chronology.  Relationships among monarchs are frequently not known.  Over all, it would probably take far less time to say what we do know about the pharaohs than what we don't, because we barely know anything at all about even a well known pharaoh like Ramesses II, as compared to, say, a modern figure of comparable importance and longevity like Louis XIV. The list given was completely arbitrary, and gave no idea why these problems, out of all the huge number of things we don't know, were being listed on the main Pharaoh page.  I think it's best for it to not be here.