Most families in Hesse, and other German areas, were decimated or eliminated totally as a result of the Thirty Years War. Therefore, you will likely have difficulty going back further in time. Hesse is equivalent to a USA state, or Canadian province. Please note that many towns or regions were strictly Catholic or Lutheran, and therefore it can save a lot of research time if you know the religion of the person you are researching. Depending on the year - the term Protestant can be more accurate than Lutheran.
Churches are extremely reliable and helpful genealogical references.
Lack of space causes the Germans to remove tombstones after fifty years, so tombstone searches aren't effective, but the parish records are very good. My father told me that in one Lutheran church in Reichelsheim there is reference to a Treusch donating money for a new church organ more than 450 years ago. The LDS Church has microfilmed many of the parish records, and other archives in Germany. This name was popular as it honored a German saint. Johann was the strictly German form.