Our relatives didn't come from Germany.Before World War 1 they lived in Gottschee which was part of the Austro-Hungarian empire. After WW1 this area became part of Yugoslavia.During the Hitler years, (in the 1930s) the entire German speaking population was moved to displaced persons camps in Austria. One camp was located in Styermark which is where your father-in-law met your mother-in-law. Gottschee was settled circa 1330 a.d. by either German immigrants from the Munich area in Germany or from the Carinthia area in Austria.It is highly unlikely that anyone will be able to trace their family history to the 14th century and then to Gottschee. Although I suppose it is possible that relatives could have immigrated from Gottschee to Germany between 1330 and 1930. There may be relatives in Germany,Austria, the U.S., Canada, and Australia who immigrated to these places after WW2.There are some Eisenzopfs in Austria who are distantly related at the "great", "great" aunt level if my memory is correct.(I can look it up if your want."I have a geneology tree that goes as far back as the 1700s.I will be glad to share this with you if you would like. Also, I was told by one of our relatives that there were two different Eisenzopf families who lived in Gottschee and that these two families were not related to each other. (I have been told by one of our uncles that the J.Eisenzopf who is all over the Internet is not related to us and our uncle has no knowledge of this person's family). Hope this helps.I have heard stories about these things while I was growing up.If you would like to know more, give me a call.