Charles X Gustav

(1622 –1660) was King of Sweden from 1654 until his death. He was married to Hedwig Eleonora of Holstein-Gottorp, who bore his son and successor, Charles XI.

Charles X Gustav was the second Wittelsbach king of Sweden after the childless king Christopher of Bavaria (1441–1448) and he was the first king of the Swedish Caroline era, which had its peak during the end of the reign of his son, Charles XI.

His numbering as Charles X derives from a 16th century invention. The Swedish king Charles IX (1604–1611) chose his numeral after studying a fictitious history of Sweden. Actually this king was the fourth actual King Charles.

(source: Wikipedia)