William IV of Hesse-Kassel, also called William the Wise, was the first Landgrave of the Landgraviate of Hesse-Kassel. He was the founder of the oldest line, which survives to this day.
Portrait by Kaspar van der Borcht, 1577
Philip II of Hesse-Rheinfels, also called Philip the Younger, was the first Landgrave of Hesse-Rheinfels.
Funerary monument of Philipp II in the Stiftskirche St. Goar
