William VI, Landgrave of Hesse-Kassel

Wilhelm VI, Landgrave of Hesse-Kassel (23 May 1629 – 16 July 1663), known as William the Just, was Landgrave of Hesse-Kassel from 1637 to 1663.

Marriage
On 9/19 July 1649, he married Princess Hedwig Sophie of Brandenburg, daughter of George William, Elector of Brandenburg and Princess Elisabeth Charlotte of the Palatinate.

Issue

 * 1) Princess Charlotte Amalie of Hesse-Kassel (1650–1714), married Christian V of Denmark
 * 2) William VII, Landgrave of Hesse-Kassel (1651–1670)
 * 3) Princess Luise of Hesse-Kassel (11 September 1652 - 23 October 1652)
 * 4) Charles I, Landgrave of Hesse-Kassel (3 August 1654 – 23 March 1730)
 * 5) Philipp, Landgrave of Hesse-Philippsthal (14 December 1655 – 18 June 1721), Landgrave of Hesse-Philippsthal, married Katharina Amalia of Solms-Laubach.
 * 6) Prince Georg of Hesse-Kassel (1658–1675)
 * 7) Elisabeth Henriëtte (8 November 1661 – 27 June 1683) married Frederick I of Prussia