I'm with mark on this one. It is disputed by the best of scholars and going back that far shouldn't count anyway. Let's face it: everybody on this earth's ancestors came from somewhere else (with the exception of the folks around the Rift Valley of course).
The question should be: what is fair and just for the people living NOW?
That's a great question. At one time I believed in partition and the creation of embassy like status for the Serbian Holy sites. I had no problem with the Albanian areas becoming independent.
After the latest pograms against the Serbs by the Albanians in Kosovo, I've changed my mind but I haven't come up with a solution yet.