King Karl XVI Gustaf of Sweden has been the reigning monarch since September 15, 1973. He was born on April 30, 1946, and is a member of the House of Bernadotte. As king, he represents Sweden in various ceremonial roles and is involved in promoting Swedish culture and traditions. The king is married to Queen Silvia, and they have three children: Crown Princess Victoria, Prince Carl Philip, and Princess Madeleine. King Karl XVI Gustaf is known for his interest in environmental issues and has supported various initiatives aimed at sustainability and conservation in Sweden.