If I were you I would check Starke Genealogy Index of German Nobility website at http://www.rootsweb.ancestry.com/~autwgw/sgi/index.htm#top
and put in the surmane of Hesch. The website has all the names of the German nobility in it's database. I know this maybe far off put there is the princely family of von Hessen und bei Rhein meaning Hesse by the Rhine family that is a collateral branch of the von und zu Hessen family.
Good Luck