Or steal this lands, while ridiculing everything he has stood for in his life leading to alcoholism and destitution, then after a hundred or so years say “my bad, but you can’t have your land back, we’ve done stuff to it, but you can stay in that hovel you have formed, but anyhow if there is any oil/gas or anything we can exploit/profit from then that’s a different story entirely”.
On reflection maybe a good dunking then burning might be an easier way of dealing with the obvious issue