OSM tag name=Kaltenburg matches Kaltenburg Castle in these Wikidata fields:
| Castles in Heidenheim (district) | historic=archaeological_site, historic=ruins, historic=castle, building=ruins, building=castle, historic=tower_house, tourism=attraction, place=locality |
| Ruined castles in Germany | historic=archaeological_site, historic=ruins, historic=castle, building=ruins, building=castle, historic=tower_house, tourism=attraction, place=locality |