According to the Internet source given below, Moritz Landgraf von Hessen-Kassel [Moritz der Gelehrte] was a German aristocrat, composer and scholar ruling Upper Hessen and Hersfeld Abbey. Disgusted by the unfruitful dogmatic quarrels of his time he tried to establish a moderate, more Calvinistic teaching in opposition to the prevailing orthodox conservative Lutheranism. His reform efforts provoked resistance in the Lutheran movement forcing him to abdicate in 1627. He was a member of the Fruchtbringenden Gesellschaft
and associated with authors and poets. His court became a cultural centre through the establishment of a permanent theatre with English comedies and the promotion of music.
Works: Ordnung Unsers von Gottes Gnaden Moritzen Landgravens zu Hessen ... Wie es mit Unserm zu Marpurgk bestellten Consistorio und Kirchen Rath gehalten, und was von demselben in Geistlichen und denselben anhangenden Sachen, verrichtet und verhandelt werden soll
||Maurice, Landgrave of Hesse-Kassel
||Biography by wikipedia.org.