Looking for History Info Connections OR for the Surname Wolfert

Looking for history, info, connections or ? for the surname WOLFERT. My grandfather was Josef Heinrich Wolfert. Born in Niedertiefenbach, Germany, January 2, 1902. Grew up in Wiesbaden, married in Wanne-Eickel and lived in Cologne (Koeln). WOLFERT originates from the Hessen area? and sometimes used as a first name in Holland. Any info helpful on name history or ? Thanks again, Moka :)