Clan Rising
Frankenstein Castle today

Germany · Partial ruin

Frankenstein Castle

Burg Frankenstein

Frankenstein Castle (Burg Frankenstein) is a hilltop medieval castle on a rocky spur of the Odenwald near Darmstadt in southern Hesse, Germany. Built in the 13th century and enlarged in the early 15th century, it stands as a mix of ruined curtain walls and a surviving square tower now topped with a steep slate roof.

Photograph via Wikimedia Commons

First raised

1252

Its prime

1410

Today

Partial ruin

As it stood in 1410

What Frankenstein Castle looked like in its prime.

Perched on a rocky spur above forested valleys, the castle presents rough dark fieldstone curtain walls with areas of crumbled masonry and arched gateways. A tall square tower rises from the bailey, its corners trimmed in pinkish sandstone and capped by a steep pyramidal slate roof with triangular dormer openings. Low battlemented walls enclose an inner courtyard with external stone steps and terraces; vegetation grows along some ruined wall-tops. Stonework is predominantly irregular rubble with ashlar window surrounds.

Its story

The story of Frankenstein Castle.

Conrad Reiz of Breuberg and the Free Imperial Barony, before 1252

Conrad II Reiz of Breuberg raised the castle on a spur of the Langenberg around 1240 and took his name from it, von und zu Frankenstein. A charter of 1252 concerning Conrad and his wife Elisabeth of Weiterstadt records business done super castro in frangenstein — on the castle at the Frankenstein — so the place was already standing and in use; most historians date the building to around 1240. What Conrad founded was a free imperial barony answering to no one but the emperor, holding the lordship of Nieder-Beerbach, Eberstadt and other villages. An older castle probably stood on the same hill from the eleventh century, abandoned once the new one went up nearby.

Burgmannen of Katzenelnbogen and the Burgfrieden of 1363

In 1292 Friedrich von Frankenstein made his family Burgmannen of the counts of Katzenelnbogen, granting them unrestricted access to the castle and support in the event of war. The case never arose; the castle was never besieged. The trouble came from inside the family, which split into two lines during the fourteenth century and divided the castle under a Burgfrieden of 1363 drawn up in punctilious detail, which for all that left them in continuous litigation. Around 1400 the castle had grown too small and was extended with an outer bailey, and in 1402 it became an imperial fief along with Nieder-Beerbach, free of Katzenelnbogen.

The Donkey Fief and the Sale to Hesse-Darmstadt, 1567–1662

By the middle of the sixteenth century the castle had reached the extent it kept, and the conflict with Hesse-Darmstadt had grown with it. The Frankensteins held to the Catholic faith and the right of patronage that came with it, while their lands stayed a patchwork of villages and the landgraves consolidated around them — the more so after the partition of 1567, when Georg I made Darmstadt his residence. Holding high-court jurisdiction over the Frankenstein possessions in Eberstadt, the landgraves extended it on doubtful legal ground to imperial-immediate Nieder-Beerbach; the barons answered with a stream of suits at the Imperial Chamber Court and lost to political weight anyway.

The same quarrel explains the family's oddest right. Until the late sixteenth century the Frankenstein knights lent a donkey and a squire to neighbouring places, chiefly Darmstadt, as a pillory for women who had beaten their husbands. The loan lapsed, ostensibly over unpaid fees, more probably because sending the donkey to every local court district would have conceded the landgrave's jurisdiction over every Frankenstein holding. Instructed by will never to sell to Hesse, the family sold anyway in 1662, castle and lordship together, to Landgrave Ludwig VI for 109,000 gulden, and retired to a new lordship at Ullstadt in Franconia.

Quarried for Treasure, 1662–1850s

Ludwig VI had bought the territory rather than the building, and the castle — sound enough at the sale — was left to rot. It served as an invalids' house and a refuge during the wars of Louis XIV, and then rumours of buried treasure did what no siege had: walls and cellar vaults were pulled down by people digging for them. By the middle of the eighteenth century the outer bailey was largely gone, the castle administrator's wife had sold off everything saleable down to the lead from the roofs, and the villagers below were quarrying the rest.

A chaotic dig in 1763, prompted by the old legend and by the readings of crystal-gazers, ran clean out of control: when the Nieder-Beerbach priest tried to stop it the diggers demanded his dismissal, and it ended only when Johann Heinrich Drott was buried alive in a collapsing shaft and given a suicide's burial. Later attempts in 1770 and 1787–88, the second of them fatal as well, brought an official ban on digging. From the middle of the nineteenth century Grand Duke Ludwig III had the ruin partly rebuilt in the romantic taste of the day, clumsily enough that the work destroyed more than it recovered: the gate tower was given a storey too many, and the inner tower a cap it had probably never had.

Dippel, the Dragon and Mary Shelley

The castle's fame rests on a book that never mentions it. Johann Konrad Dippel, alchemist and physician, was born here in 1673, and local folklore, repeated by the castle's own keepers, has him experimenting on exhumed corpses and with nitroglycerin. Historians doubt it: nothing shows Dippel returning after he finished his studies at Giessen in 1693, and nitroglycerin had not been discovered in his lifetime. Mary Shelley's journals from the period name no castle either. She did travel the Rhine in 1814, spending a few hours at Gernsheim some sixteen kilometres away, and several biographers have offered Dippel as a possible influence; others doubt any connection at all, and Frankenstein — the Franks plus stein, rock — is an unremarkable castle name in a region full of them.

The older story is the dragon. As August Nodnagel set it down in the nineteenth century, a knight called George rode up from Nieder-Beerbach, fought the beast by the well until both were spent, killed it, and died of the poison in its tail. A Georg von Frankenstein who died in 1531 does lie in the church below, his tomb carved with a lindworm — but the tale is later than the tomb, and the carving most likely honours his name-saint, conventionally shown fighting a dragon. The newest layer is American: a live radio broadcast from the castle on Halloween 1952, rigged with a toppling statue, which swamped the station with frightened callers, and from 1978 an annual Halloween festival begun by airmen from Rhein-Main Air Base.

Step inside

9 places to explore in 1410.

The record describes 9 distinct spots at Frankenstein Castle, including 3 interiors: gatehouse passage, castle chapel interior, crypt beneath the chapel. Create your own photoreal reconstruction and explore every one, more scenes means more rooms, more angles, and more of the place to stand in.

Outer approach and gatehouseGatehouse passageInner courtyard (bailey)Main tower exteriorCurtain wall and battlementsCastle chapel interiorCrypt beneath the chapelHerb garden and wellExterior stone staircase to bailey

Build Your Own Castle

Recreate Frankenstein Castle with AI to explore it.

The artist rebuilds it as it stood in 1410, a photoreal reconstruction that belongs to you alone. Pay with coins, no subscription needed.

Recreate this castle →Defend this castle →

Whose castle

Clans who held Frankenstein Castle.

The families that held Frankenstein Castle for a decade or more across its history, follow a name to its clan.

  • Frankenstein

    Built before 1250 by Lord Conrad II, who took the name von und zu Frankenstein; held until sold to Hesse-Darmstadt in 1662.

Nearby

Landmarks within reach of Frankenstein Castle.

Questions about Frankenstein Castle

What is the history of Frankenstein Castle?

Frankenstein Castle was built in the 13th century as the seat of Lord Conrad II Reiz of Breuberg, who founded the free imperial Barony of Frankenstein. The castle was divided between two family branches in 1363 and enlarged and modernised around the beginning of the 15th century. The Frankenstein family sold the lordship to Hesse-Darmstadt in 1662, after which the castle fell into ruin and was partly restored in the 19th century.

What is inside Frankenstein Castle?

Frankenstein Castle contains a gatehouse passage, a castle chapel and a crypt beneath the chapel. The castle chapel was built in 1474 and has been used as a registry office for civil wedding ceremonies since 2000. Other surviving spaces include the inner courtyard, terraces and the covered well in the castle’s inner yard.

Where is Frankenstein Castle?

Frankenstein Castle is on a rocky spur of the Odenwald near Darmstadt, in southern Hesse. It stands close to the southern outskirts of Darmstadt, at an elevation of 370 metres, in the municipality of Mühltal. The castle overlooks the city and the Rhine plain from the western edge of the Odenwald.

When was Frankenstein Castle built?

Frankenstein Castle was built in the 13th century, with the first documented existence dating to 1252. The precise construction date is not certain: one account places its construction before 1250, while another gives a first-raised year of 1252. It was enlarged and modernised around the beginning of the 15th century, including substantial work around 1410.

Was Frankenstein Castle ever attacked or besieged?

Frankenstein Castle was never besieged. Although the Frankenstein family formed a wartime alliance with the counts of Katzenelnbogen in 1292, no such conflict occurred at the castle itself. The castle later served as a refuge during the wars of conquest of Louis XIV of France, but no assault or siege is recorded.

Which family or clan held Frankenstein Castle?

Frankenstein Castle was held by the Frankenstein family, founded by Lord Conrad II Reiz of Breuberg after he took the name von und zu Frankenstein. The family divided the castle between two branches in 1363. They held it until Lord John I sold the lordship to Hesse-Darmstadt in 1662.

What did Frankenstein Castle look like in its prime?

In its prime, Frankenstein Castle had rough dark fieldstone curtain walls, arched gateways and a tall square tower with pinkish sandstone corner trim. A steep pyramidal slate roof with triangular dormer openings topped the tower. Low battlemented walls enclosed the inner courtyard, while external stone steps and terraces connected the bailey’s uneven rubble-built spaces.

Is Frankenstein Castle still standing or is it a ruin?

Frankenstein Castle is still standing as a partial ruin. Its surviving features include ruined curtain walls, a square tower, battlements, the gatehouse, the chapel and the inner courtyard. The castle fell into ruin from the 18th century, and restoration began in the mid-19th century; the two distinctive towers are historically inaccurate restorations.

Can you visit Frankenstein Castle?

Frankenstein Castle can be visited by the public. It is described as a tourist destination and is normally open to the public, although some special events have separate arrangements. The site also has a restaurant beneath the towers and is used for civil wedding ceremonies in the chapel.
All castles of Germany · Castles of Europe · the best castles in Europe · explore the finished reconstructions.