Carl XVI Gustaf (Carl Gustaf Folke Hubertus; born 30 April, 1946) is the reigning King of Sweden. On 15 September, 1973, he succeeded his grandfather Gustav VI Adolf. He is the only son of Prince Gustaf Adolf, Duke of Västerbotten, and Princess Sibylla of Saxe-Coburg and Gotha.
The King's heir apparent, upon passage on 1 January, 1980 of a new law establishing absolute primogeniture (the first such law passed in European history), is Crown Princess Victoria, the eldest child of the King and his wife, Queen Silvia.