Charles (Swedish: Karl) was a Swedish Prince, Duke and regent. He was born on 26 September 1748 in Stockholm, and died there 5 February 1818. Charles was Prince of Sweden and Duke of Södermanland. He was the son of King Adolphus Frederick and Queen Louisa Ulrika, née Princess of Prussia, a sister of Frederick the Great. Louisa Hedvig (1797-1797) Charles Adolphus (1798-1798) Duke Charles was likely the father of Augusta von Fersen's son, Count Carl Axel Löwenhielm (1772-1861).