William IV of Hesse-Kassel (24 June 153225 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.

Life

Landgrave

William was born in Kassel, the eldest son of Landgrave Philip the Magnanimous and Christine of Saxony.

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