The Philipp University of Marburg , was founded in 1527 by Landgrave Philip I of Hesse (usually called the Magnanimous

Magnanimous

Magnanimous is:*an adjective referring Magnanimity*hence an epithet, used for various rulers*the music label Magnanimous Records...

, although the updated meaning 'haughty' is sometimes given) as the world's oldest university dating back to a Protestant foundation. As a modern state university it has no religious affiliation anymore.

It was the main university of the principality of Hesse

Hesse

Hesse or Hessia is both a cultural region of Germany and the name of an individual German state.* The cultural region of Hesse includes both the State of Hesse and the area known as Rhenish Hesse in the neighbouring Rhineland-Palatinate state...

 and remains a public university of that German state.