repository Jump to: navigation , search Charles II of Mecklenburg-Strelitz (German: Karl II. von Mecklenburg-Strelitz ) (October 10, 1741 - November 6, 1816) was first duke , then grand duke of Mecklenburg-Strelitz . [ edit ] Marriage and children Karl married twice: first, to Landgravine Friederike of Hesse-Darmstadt (1752-1782), daughter of