Examples include Palestinians, descendants of slaves in the US, Native Americans, indigenous peoples around the world.
Just about everybody has a history of their ancestors taking things in ways which weren't "legal" AND having things taken from them. It is hard to come up with a consistent moral and legal philosophy to deal with these kinds of things. Do I owe reparations to the British isles and Normandy because most of my ancestors were Vikings (or to myself because many of my ancestors would also have been victims)? Should I give the family farm back to the Native Americans who were kicked off the land? Does Rome still deserve much of Europe?
It's super difficult to determine these things, especially when the people who have had things taken from them are dead and maybe several generations back.