A friend linked to this piece of news from Norway (in translation; French report here): specialists in DNA analysis have opened the tombs of Dukes Richard I and Richard II of Normandy in order to determine their origins. The reason the specialists feel this needs to be done lies in the differing traditions of how Rollo (grandfather of Richard I) arrived in what is now Normandy in the first place: at its simplest, as recorded in the newspaper, was Rollo Danish or Norwegian? The actual questions should be does this change our understanding of history? Is it good history? Is it good science?