William IV, Landgrave of Hesse-Kassel

William IV of Hesse-Kassel (24 June 1532 – 25 August 1592), also called William the Wise, was the first Landgrave of the Landgraviate of Hesse-Kassel (or Hesse-Cassel). He was the founder of the oldest line, which survives to this day.

Issue

 * 1) Princess Anna Maria of Hesse-Kassel (27 January 1567 – 21 November 1626), married on 8 June 1589 to Louis II, Count of Nassau-Weilburg.
 * 2) Princess Hedwig of Hesse-Kassel (30 June 1569 – 7 July 1644), married on 11 September 1597 to Ernst of Schaumburg.
 * 3) Agnes of Hesse-Kassel (30 June 1569 – 5 September 1569)
 * 4) Sofie of Hesse-Kassel (10 June 1571 – 18 January 1616)
 * 5) Maurice, Landgrave of Hesse-Kassel (25 May 1572 – 15 March 1632)
 * 6) Princess Sabine of Hesse-Kassel (12 May 1573 – 29 November 1573)
 * 7) Princess Sidonie of Hesse-Kassel (29 June 1574 – 4 April 1575)
 * 8) Prince Christian of Hesse-Kassel (14 October 1575 – 9 November 1578)
 * 9) Princess Elisabeth of Hesse-Kassel (11 May 1577 – 25 November 1578)
 * 10) Princess Christine of Hesse-Kassel (19 October 1578 – 19 August 1658) married John Ernst, Duke of Saxe-Eisenach
 * 11) Princess Juliane of Hesse-Kassel (born and died 9 February 1581)