He was born at Strelitz on 23 February 1708 but resided at Mirow where  
        he died aged forty-four on 4 June 1752. In February 1735 he married     
        Elisabeth Albertine of Saxe-Hildburghausen, by whom he became the       
        father of ten children. Karl's elder half-brother, Adolf Friedrich      
        III, was the ruling Duke of Mecklenburg-Strelitz who died childlessly   
        only six months after Karl. This made Karl's third child the next       
        ruling Duke of Mecklenburg-Strelitz as Adolf Friedrich IV. However, as  
        he was a minor, it was his mother who acted on his behalf. Elisabeth    
        Albertine was regent until only 1753 when her son finished his studies  
        and took control of the Duchy himself. She died eight years later and,  
        less than two months after her death, her daughter Charlotte Sophie     
        married King George III of Great Britain.

Source: Leo van de Pas