I have a gentleman whose death record says he was born in "Fiensburg, Germany" in 1862. According to Wikipedia, Fiensburg was then in Schleswig-Holstein, and another Wikipedia article indicates that in 1862, Schleswig-Holstein was part of Denmark. The FamilySearch-fed drop-down location list suggests "Slesvig, Denmark," for a location until 1866, and that it what I have used, but I'd appreciate some input from someone with more knowledge of the historical geography of the area. Mange tak for din hjælp.