OSM tag alt_name=Gnadenkirche matches Gnadenkirche in these Wikidata fields:
| Churches completed in 1907 | man_made=tower, amenity=place_of_worship, building=church, disused:amenity=place_of_worship |
| Churches in Hamburg | man_made=tower, amenity=place_of_worship, building=church, disused:amenity=place_of_worship |
| Former Lutheran churches | man_made=tower, amenity=place_of_worship, building=church, disused:amenity=place_of_worship |
| Romanesque Revival church buildings in Germany | man_made=tower, amenity=place_of_worship, building=church, disused:amenity=place_of_worship |
| Russian Orthodox church buildings in Germany | man_made=tower, amenity=place_of_worship, building=church, disused:amenity=place_of_worship |