Castle Hardenstein
The castle lies in a valley entrance at the bank of the river Ruhr between Witten and Herbede.It belongs to a private owner and is leased by the town of Witten.The castle has been built in 3 stages:
| I. | A fastened house   (tower house) on a cock.surrounded by a ditch | 
| II. | Extension of the   building to the south with edification of the bay and both towers (SE-and   SW-tower) | 
| III. | Extension by   edification of the ring wall,flank tower and tower house | 
History
 
| 1145 | The   brothers Herimann and Neveling of Hardenberg (nobiles) appear several times   aswitnesses in issues of emperor Konrad III. and the abbots of Werden (Some   me mbers of the family have the title 'comes' because of their funktion as   overseer. Yet they never have been owners of a county). | 
| 1287 | The   troops of the archbishop of cologne attacked the county Mark.Earl Eberhard   II. of the Mark destroyed in answer to it a large number of castles at the   river Ruhr.possibly also the Hardenstein, because the Hardenberger were on   the side ofthe archbishop. | 
| 1340 | Heinrich   II. of Hardenberg gets the fief of estates at Herbede from abbot Johann l. of   Werden. | 
| 1347 | Mr.Konrad   of Elbervelde, knight, sells Mr.Heinrich of Hardenberg his'fishery in the   Ruhr' | 
| 1354 | Heinrich   II.of Hardenberg sells his castle in Neviges to earl Gerhard of Berg. He   moves to castle Hardenstein. | 
| 1439 | By   marriage the Stael of Holstein gets the castle. | 
| 1529 | The   oldest daughter of Dietrich Stael of Holstein, Beatrix, marries Heinrich of   Brempt. So the'of Brempt'get the castle Hardenstein. | 
| 1603 | The   family'of Laer'gets the castle by marriage. Melchior of Laer marries   Elisabeth of Brempt. | 
| 1605 | The   masters of Stammheim try as main creditor to force Hardenstein upon the widow   of Hagedorn as a Witten-Crengeldanzer fief. | 
| 1629 | The   noble estate house Hardenstein and its property gets leased to   Oberste-Berghausen (Witten-Bommern) for yearly 145 bad Taler, 20 pound flax   and 20 cart-load wood. | 
| 1651 | Johann   Georg of Falkenberg leases Hardenstein for 25 years | 
| 1676 | The   estate is leased for a further 12 years | 
| 1700 | Alexander   of Spaen gets the estate by marriage with Johanna von Laer | 
| 1787 | The   widow Agnes earl of Nassau sells the knight estate to the baron Guilbert of   Boenen in Löppinhof for 14300 florin. | 
| 1815 | By   heritage earl Max Friedrich of Westerholt-Gysenberg in Oberhausen gets the   estate. | 
| 1902 | Hardenstein   falls by sale in possession of Mr.Dünkelberg on castle Steinhausen (Witten)   and arter his dead by heritage to the actual owner   Mrs.Oberste-Frielinghaus/heirs. | 
| 1974 | The   town of Herbede is leaser for one year. | 
| 1975 | Because   of the new communal System (Herbede belongs to Witten) the town of Witten   gets the lease of the castle ruin. |