Bernadotte was born Prince of Sweden and Duke of Uppland, but having made an unequal match was disqualified from the line of succession. He was also forbidden to use his birth titles and left to be called "Mr. Bernadotte". His cousin Lennart Bernadotte, who two years earlier had experienced the same thing (as the first Swede in history), considered himself, and even more so Sigvard, subjected to very cruel treatment for several decades by the Royal Court of Sweden due to their marriages.