OSM tag name=Unionskirche matches Unionskirche in these Wikidata fields:
OSM tag name=Unionskirche matches Unionskirche, Idstein in these Wikidata fields:
| 14th-century churches in Germany | man_made=tower, amenity=place_of_worship, building=church, disused:amenity=place_of_worship |
| 17th-century Protestant churches | man_made=tower, amenity=place_of_worship, building=church, disused:amenity=place_of_worship |
| Churches completed in 1677 | man_made=tower, amenity=place_of_worship, building=church, disused:amenity=place_of_worship |
| Churches completed in the 1350s | man_made=tower, amenity=place_of_worship, building=church, disused:amenity=place_of_worship |
| Former collegiate churches in Germany | man_made=tower, amenity=place_of_worship, building=church, disused:amenity=place_of_worship |
| Protestant churches in Hesse | man_made=tower, amenity=place_of_worship, building=church, disused:amenity=place_of_worship |