OSM tag name=Ludwigsruhe matches Ludwigsruhe in these Wikidata fields:
| Castles in Schwäbisch Hall (district) | historic=archaeological_site, historic=ruins, historic=castle, building=ruins, building=castle, historic=tower_house, tourism=attraction, place=locality |
| Towns in Baden-Württemberg | place=village, place=town, place=suburb |