Ronneburg Castle

About

Ronneburg Castle (German: Burg Ronneburg) is a castle in Ronneburg in the Main-Kinzig district of Hesse, Germany. It is a hilltop castle situated near the near Altwiedermus village on a steep basalt cone. Its position makes it visible from afar. It lends its name to the Ronneburg hill country. Originally founded in the 13th century as a Mainz castle to secure the territory, Ronneburg Castle came under the ownership of the Ysenburgs in 1476. Its greatest significance was in the 16th century when it served as the residence of the Ysenburg-Büdingen-Ronneburg collateral line. The castle showcases Renaissance architecture, including the distinctive domed helmet of the keep, the Zinzendorf Building, and the New Bower. During the Thirty Years' War, the core castle was substantially damaged by fire, and a few years later, it was plundered. Subsequently, Ronneburg Castle lost its role as a fortress and noble seat, becoming a refuge for social fringe groups like the Moravian Brethren. Its status as a historical monument was acknowledged around 1900. The well-preserved medieval and early modern castle buildings have since made it a popular regional excursion destination

The Ronneburg is situated to the east of the Ronneburger Hügelland, a distinct natural region named after the castle. This area is characterized by a flat landscape located between the Wetterau and the Büdinger Forest, gradually ascending towards the northeast in the direction of the Vogelsberg. The castle complex occupies the summit of a prominent basalt cone, approximately 237 meters above sea level, overlooking the Fallbach Valley, which lies around 160 meters above sea level. To the southwest of the castle, the valley opens into fertile farmland, while the eastern slope, known as Am Steinkopf, reaches a height of 269 meters above sea level and is covered in forest. Historically, significant trade routes, such as the Hohe Straße or Reffenstraße, traversed the valley, with the castle as a monitoring point.

Foundation as a castle of the Electorate of Mainz

The earliest documented reference to the castle dates to either 1231 or 1258 when a Burgmann from the Rüdigheim family identified himself as "de Roneburg" after the castle. However, the fortification likely predates this mention. It is believed to have been built by the lords of Büdingen, possibly Gerlach I or Gerlach II, to secure the surrounding judicial districts, the Büdingen forest, and the trade routes that passed through the region. This construction possibly occurred during the period of the Staufer final battle in the Wetterau, preceding the death of Konrad IV. The earlier names 'Raneberg' and 'Roneberg' likely derive from the Old High German word Rone, which refers to a fallen tree, suggesting the presence of an even older fortified complex with palisades. Notably, the oldest surviving components of the present-day core castle date to the second quarter of the 14th century.

Numerous indications suggest that Ronneburg Castle originally served as a territorial fortress for the Archbishopric of Mainz. The castle's location within the Mainzian court of Langendiebach allowed it to safeguard this territory, as well as the adjacent forested regions under Electoral-Mainzian jurisdiction along the lower Kinzig River. Notably, other Mainzian possessions, such as Gelnhausen (held until 1170) and Bulau (held until 1277), further underlined the importance of Ronneburg's role. After the extinction of the Büdingen family, who previously held the castle (before 1247), Ronneburg Castle did not immediately pass to their primary heirs, the Counts of Ysenburg. Instead, it was briefly under the ownership of the von Hohenlohe family when first mentioned. It was subsequently sold to the Archbishopric of Mainz in 1313 by Gottfried III of Hohenlohe-Brauneck.

The castle was pledged to the Knights of Rockenberg in 1327, leading to significant expansions. Between 1339 and 1356, it once again fell under the administration of the Archbishopric. In 1356, Ronneburg Castle was pledged to the Lords of Cronberg, specifically Hartmut VI and Frank VIII of Cronberg. They had provided considerable financial assistance to Archbishop Gerlach of Nassau and, in return, received the castle as collateral for 18,000 small gold florins. The Cronbergs retained ownership of Ronneburg until 1407, during which time they carried out further enhancements, including the construction of the chapel bay window in the hall building. Starting in 1424, the castle entered another period of pledging, this time under the control of the Counts of Hanau.

In 1476, during a tumultuous period marked by the Mainz Collegiate Feud, the Archbishop of Mainz, Diether of Ysenburg, transferred control of the castle to his brother, Count Ludwig II of Ysenburg-Büdingen. However, upon Ludwig's passing in 1511, a succession conflict erupted among his three sons, plunging the Büdingen region into a state of unrest starting in 1517. It was not until 1523 that the castle came under the possession of Philipp von Ysenburg-Büdingen, who laid the foundation for the Ysenburg-Büdingen-Ronneburg lineage. Under Philipp's stewardship, Ronneburg Castle underwent significant developments and acquired its enduring architectural form.

Philip of Isenburg-Ronneburg was succeeded by his son, Anton, who had a total of 15 children. However, despite the marriages of Anton's sons, they remained childless. The brothers Georg and Heinrich ruled successively. After the construction of Kelsterbach Castle by Anton's third son, Wolfgang of Ysenburg-Ronneburg, they were mentioned several times as Counts of Isenburg-Büdingen-Kelsterbach. With the remodeling by Count Heinrich, Ronneburg Castle had a last flourishing period.

Following the passing of Heinrich of Ysenburg-Ronneburg in 1601, the lineage once again faced extinction. Wolfgang Ernst I of Ysenburg-Büdingen in Birstein asserted his inheritance rights and forcefully assumed control of the castle as a reverted fief. Nevertheless, the castle continued to serve as the residence for Heinrich's widow during the subsequent period.

In a fire caused by the carelessness of the burgrave, large parts of the castle were destroyed in 1621, including the New Bower and the Upper Gate Building. This incident marked the conclusion of its role as a dowager's residence. Thirteen years later, the largely damaged and vacant Ronneburg faced looting by Croatian cavalry troops amid the turmoil of the Thirty Years' War. Restoration efforts did not commence until after the war's conclusion, though the New Bower was not fully restored to its original height.

Ronneburg ceased to serve as the official seat of the former Langendiebach court, later known as the Ysenburg office of Ronneburg, at the close of the 17th century. It was sold by the Isenburg-Birstein line to Isenburg-Büdingen. The office had already been extended by the court of Selbold in 1645, whose administrative seat was finally elevated to Langenselbold in 1698.

The Calvinist Ysenburg-Büdingen played a crucial role in permitting Protestant exiles to take up residence in the castle starting in 1700. It became a long-standing sanctuary for those facing religious persecution, with notable figures such as the Swiss mystic Ursula Meyer engaging in 156 debates here between 1715 and 1719. It also offered refuge to unhoused people, including Jews and Gypsies, who engaged in various craft activities within the castle's rooms. By the late 18th century, a woolen goods manufactory operated within the castle's premises. In 1736, Count von Zinzendorf and his Herrnhut Brethren community moved in, transforming the castle into a widely visited place of pilgrimage. Just two years later, they found the site too cramped for their needs, leading to the establishment of the Herrnhaag settlement on a nearby hill. Starting in 1750, many of these settlers emigrated to America and other countries.

Over time, Ronneburg continued to be occupied by various marginalized groups under different landlords. The substantial population living there led to the castle becoming an independent municipality in 1821 during an administrative reform but without its parish. However, this status was reversed as early as 1829. As the buildings began to deteriorate due to storm damage, the number of residents decreased in the mid-19th century. In 1838, the outer castle structures were demolished, a move seemingly encouraged by the authorities due to the undesirable inhabitants. The sale of the demolition materials was likely an attempt to compensate for declining rental income. Additional demolition sales occurred in 1870, but it was not until 1885 that the last occupant left the castle.

During this period, the emerging monument preservation movement in Hesse began to recognize the site, primarily through the volume on the art monuments of the Büdingen district authored by Heinrich Wagner in 1890. Its prominence increased in the following years due to visits from youth movements and hiking clubs from neighboring towns. In 1905, Ronneburg Castle received official monument protection for the first time. Peter Nieß (1895-1965), an architect and historian from Büdingen, played a significant role in preserving and researching the building's history, presenting a comprehensive architectural history in 1936. The Ysenburg Princely House, under Friedrich Wilhelm of Ysenburg and Büdingen and his successor Otto Friedrich of Ysenburg and Büdingen, actively supported this effort. In 1952, the castle museum was opened, and in 1967, a restaurant was established in the Marstall. The structural and museum care was formally arranged in 1988 through a sponsorship agreement between the owner and the Förderkreis Freunde der Ronneburg e. V.

In June 2004, Wolfgang Ernst zu Ysenburg und Büdingen sold Ronneburg to Forfin GmbH, whose managing director and sole shareholder, Joachim Benedikt Freiherr von Herman auf Wain, is a cousin of his wife.

The earliest documented reference to the castle dates to either 1231 or 1258 when a Burgmann from the Rüdigheim family identified himself as "de Roneburg" after the castle. However, the fortification likely predates this mention. It is believed to have been built by the lords of Büdingen, possibly Gerlach I or Gerlach II, to secure the surrounding judicial districts, the Büdingen forest, and the trade routes that passed through the region. This construction possibly occurred during the period of the Staufer final battle in the Wetterau, preceding the death of Konrad IV. The earlier names 'Raneberg' and 'Roneberg' likely derive from the Old High German word Rone, which refers to a fallen tree, suggesting the presence of an even older fortified complex with palisades. Notably, the oldest surviving components of the present-day core castle date to the second quarter of the 14th century.

Numerous indications suggest that Ronneburg Castle originally served as a territorial fortress for the Archbishopric of Mainz. The castle's location within the Mainzian court of Langendiebach allowed it to safeguard this territory, as well as the adjacent forested regions under Electoral-Mainzian jurisdiction along the lower Kinzig River. Notably, other Mainzian possessions, such as Gelnhausen (held until 1170) and Bulau (held until 1277), further underlined the importance of Ronneburg's role. After the extinction of the Büdingen family, who previously held the castle (before 1247), Ronneburg Castle did not immediately pass to their primary heirs, the Counts of Ysenburg. Instead, it was briefly under the ownership of the von Hohenlohe family when first mentioned. It was subsequently sold to the Archbishopric of Mainz in 1313 by Gottfried III of Hohenlohe-Brauneck.

The castle was pledged to the Knights of Rockenberg in 1327, leading to significant expansions. Between 1339 and 1356, it once again fell under the administration of the Archbishopric. In 1356, Ronneburg Castle was pledged to the Lords of Cronberg, specifically Hartmut VI and Frank VIII of Cronberg. They had provided considerable financial assistance to Archbishop Gerlach of Nassau and, in return, received the castle as collateral for 18,000 small gold florins. The Cronbergs retained ownership of Ronneburg until 1407, during which time they carried out further enhancements, including the construction of the chapel bay window in the hall building. Starting in 1424, the castle entered another period of pledging, this time under the control of the Counts of Hanau.

In 1476, during a tumultuous period marked by the Mainz Collegiate Feud, the Archbishop of Mainz, Diether of Ysenburg, transferred control of the castle to his brother, Count Ludwig II of Ysenburg-Büdingen. However, upon Ludwig's passing in 1511, a succession conflict erupted among his three sons, plunging the Büdingen region into a state of unrest starting in 1517. It was not until 1523 that the castle came under the possession of Philipp von Ysenburg-Büdingen, who laid the foundation for the Ysenburg-Büdingen-Ronneburg lineage. Under Philipp's stewardship, Ronneburg Castle underwent significant developments and acquired its enduring architectural form.

Philip of Isenburg-Ronneburg was succeeded by his son, Anton, who had a total of 15 children. However, despite the marriages of Anton's sons, they remained childless. The brothers Georg and Heinrich ruled successively. After the construction of Kelsterbach Castle by Anton's third son, Wolfgang of Ysenburg-Ronneburg, they were mentioned several times as Counts of Isenburg-Büdingen-Kelsterbach. With the remodeling by Count Heinrich, Ronneburg Castle had a last flourishing period.