Person

William IV, Landgrave of Hesse-Kassel

1532–1592 · 16th century · Also known as William the Wise

William IV, Landgrave of Hesse-Kassel, called the Wise, was the eldest son of Philip the Magnanimous. In the division of Hesse in 1567 he received about half the land, with Kassel as his capital. He was a careful administrator and a noted astronomer whose observatory at Kassel produced one of the best star catalogues of the age.

William IV, Landgrave of Hesse-Kassel
Image: Caspar van der Borcht · Public domain · Wikimedia Commons

Mentioned in 1 state history

Landgraviate of Hesse-Kassel

See also

Cite this entry
APA
The Epoch Institute. (2026). William IV, Landgrave of Hesse-Kassel. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/william-iv-landgrave-of-hesse-kassel
MLA
“William IV, Landgrave of Hesse-Kassel.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/william-iv-landgrave-of-hesse-kassel. Accessed .
Chicago
The Epoch Institute. “William IV, Landgrave of Hesse-Kassel.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/william-iv-landgrave-of-hesse-kassel.
Harvard
The Epoch Institute (2026) ‘William IV, Landgrave of Hesse-Kassel’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/william-iv-landgrave-of-hesse-kassel (Accessed: ).

Last reviewed October 2026Random entry ↻