Same place as Ernsthausen, Waldeck-Frankenberg, Hesse, Germany — map location from the modern place
'Chur-Hessia'=Electorate of Hesse-Kassel, annexed by Prussia 1866. Two Kurhessen candidates existed (Kreis Frankenberg vs Kirchhain); Frankenberg wins: matches the tree's existing row #747 (used by 4 other events in one family cluster, surname Kreis) and search_places('Kirchhain') returns nothing. Not a hard identification of this individual's own village — residual Kirchhain possibility noted.
Wikidata and OpenStreetMap/Nominatim gazetteer lookups · Wikidata / OpenStreetMap
{"name":"Ernsthausen, Hesse, Germany","lat":50.9841056,"lon":8.7354461,"countryCode":"DE","adminLevel":"suburb"}
lookup_place q=Ernsthausen, fetched this session; this geo hit is 0.1km from existing row #747's own coordinate (50.9833,8.7333), corroborating the Frankenberg identification over Kirchhain.