Burg Volkenstorf

Burg Volkenstorf stands as a notable example of an early medieval hill castle located in the municipality of St. Florian, Austria. Established around the early 11th century, it was originally the seat of the noble Volkenstorfer family, whose history is closely intertwined with the castle's development and the feudal dynamics of the region between the Enns and Traun rivers.

The castle's origins trace back to circa 1020 when the Volkenstorfer family relinquished their earlier holdings near Gleink monastery to establish a new fortified residence at Volkenstorf. The family name appears in historical records from 1151 as "de Volchenstorf," highlighting their long-standing association with this strategic site. This initial fortification likely served as a defensive stronghold and a symbol of the family's regional influence during the High Medieval period.

Medieval history and feudal significance

Throughout the 13th century, Burg Volkenstorf witnessed significant historical events that shaped its fate. In 1256, the castle's owners, Ortolf II. von Volkensdorf and Otto III. Rohr, were implicated in the murder of the provincial scribe Witiko von Prčice and Blankenberg. This serious crime led to their exile, the demolition of their castles, and confiscation of their lands, marking a turbulent chapter in the castle's history.

However, the castle's fortunes were revived following the political changes after the victory of Rudolf of Habsburg over King Ottokar II Prěmysl. In 1282, Heinrich I. von Volkensdorf received official permission from Albrecht of Habsburg to reconstruct Burg Volkenstorf, reestablishing the family's presence and influence in the region. This reconstruction likely involved rebuilding defensive structures and residential buildings, reflecting the architectural styles and military needs of the late 13th century.

By the early 15th century, documents from 1422 reveal that the castle complex may have consisted of two distinct residences: the Oberhaus (Upper House) and Niederhaus (Lower House). Both were held as fiefs under the Passau bishopric, indicating the castle's integration into the ecclesiastical and feudal power structures of the time.

Destruction, reconstruction, and later ownership

The castle suffered significant damage during a fire in 1558, which affected both the castle and its associated farm buildings. Despite this, the Volkenstorfer family retained ownership until 1610. Following the death of the last male heir, the estate passed to his Protestant widow, who later sold it around 1629-1630 to Count Werner t’Serklaes von Tilly. Count Werner was a nephew of the renowned military commander Johann T’Serclaes von Tilly.

Between 1633 and 1645, Count Werner demolished the old Burg Volkenstorf and constructed a new residence called Schloss Tillysburg on the same site. Building materials from the original castle ruins were repurposed for this new structure, marking a transition from medieval fortification to a more modern noble residence typical of the early Baroque period.

Archaeological rediscovery and site features

For many years, the exact location of Burg Volkenstorf was uncertain and mistakenly attributed to an area near the hamlet of Volkersdorf in the Enns municipality. This misconception was corrected in 2011 by researcher Christian K. Steingruber, who identified the castle remains on a plateau just south of Schloss Tillysburg, approximately 200 meters away.

Subsequent archaeological investigations in 2012 by the Federal Monuments Office and Upper Austrian State Museums employed non-invasive methods such as ground-penetrating radar and geomagnetic surveys to confirm the site's identification as the authentic remains of Burg Volkenstorf. These studies revealed a layout characteristic of early medieval fortifications, featuring two prominent rounded earth mounds resembling motte structures.

The larger mound, approximately 50 meters across, likely served as the Kernwerk or main fortified enclosure, while the smaller mound, about 30 meters across, probably functioned as the Vorwerk, an outer defensive bailey or courtyard. Just south of these mounds lies a smaller semicircular plateau, possibly used for auxiliary buildings or agricultural purposes related to the castle estate.

Today, the site preserves primarily earthwork features without standing stone structures. The original masonry and timber were dismantled and reused during the construction of Schloss Tillysburg in the 17th century. The summit of the main mound hosts a modern chapel called the Lourdes-Grotte, erected in 1904, adding a spiritual dimension to the historic site.

Archaeological methods and findings

The archaeological prospection included detailed topographic mapping and advanced geophysical surveys, which allowed researchers to delineate the castle's footprint while leaving the earthworks largely undisturbed. Although no stone artifacts or inscriptions were recovered, the surveys provided valuable insights into the castle's layout and construction techniques.

These investigations contribute to understanding the architectural characteristics and feudal role of Burg Volkenstorf, highlighting its importance as a regional stronghold during the early and high medieval periods. The current estate owner, Georg Spiegelfeld-Schneeburg, who also owns Schloss Tillysburg and Schloss Schlüsslberg, supported these research efforts led by medieval archaeologist Christina Schmid.

Architectural significance and legacy

Burg Volkenstorf exemplifies the typical features of an early medieval hill castle with motte-and-bailey characteristics. The use of earth mounds for defense reflects common medieval military architecture before the widespread use of stone keeps. The castle's evolution from a fortified residence to a noble estate mirrors broader shifts in architectural styles and social structures from the medieval to the early modern period.

The site's preservation as earthworks and archaeological remains offers valuable opportunities for ongoing research and education about medieval fortifications in Upper Austria. Its connection to prominent historical figures and events further enriches its cultural heritage significance.