In the past recent days, King Carl XVI Gustaf of Sweden commemorated the 40th anniversary of his accession. A Te Deum Service of Thanksgiving was held at the chapel of The Royal Palace in Stockholm on September 13, 2013. In attendance were the King and Queen Silvia; their children, Crown Princess Victoria, her her husband, Prince Daniel, with their daughter, Princess Estelle; Prince Carl Philip; Princess Madeleine and her husband, Chris O’Neill. King Harald and Queen Sonja of Norway as well as Queen Margrethe II and Prince Henrik of Denmark were also present. The sixty-seven-year old king ascended the throne on September 15, 1973 upon the death of his grandfather, King Gustaf VI Adolf. Photos by Getty Images.