The remains of the Castle can be visited
Laubenbergerstein Castle

North of Immenstadt in the Allgäu, on a wooded hill above the Iller, lies the castle ruin of Laubenbergerstein. The complex dating from the High to Late Middle Ages has been partially rebuilt through restoration work by the Immenstadt local history association.
History+
The origins of the hilltop castle Laubenbergerstein probably date back to the 12th century, when the Bishops of Augsburg built it to secure an Iller crossing and a customs station. A Heinrich von Laubenberg is mentioned as an inhabitant in 1241. The Lords of Laubenberg, who also served the monasteries of St. Gallen and Reichenau, were granted high jurisdiction by Emperor Frederick III in 1446. This led to raids and looting in 1449 by the servants of Count Hugo von Montfort, who perceived the elevation in status as a provocation. Following these events, Kaspar von Laubenberg began an expansion of the castle from 1450, during which the artillery keep was built. During the Peasants' War in 1525, rebels occupied the castle. The Laubenberg family moved into their newly built castle in Rauhenzell in 1559.
Source: Wikipedia · Licence: CC BY-SA 4.0
This description draws on the facts documented in the linked Wikipedia article; Wikipedia content is licensed under CC BY-SA 4.0. Wording and editing: Mobile History.
Location: 47.5711, 10.2368