Charles II, as he was officially known in Norway, was succeeded in both kingdoms by his adopted son Charles III John of Norway, the first Bernadotte. He had no known genealogical roots in Norway, but he had his son and heir, the future Oscar I of Norway marry Josephine of Leuchtenberg, a descendant of the earlier kings Christian II and Frederick II, and thus descending from all their ancestors too. Her sons, Charles IV and Oscar II, were thus issue of the so-called Fairhair dynasty.