The Ahrensburg village came into the possession of the Cistercian Reinfeld Abbey in 1327. After the dissolution of the monasteries due to the Reformation, the whole area came into the possession of the king of Denmark. He rewarded his general Daniel Rantzau 1567 with lordship over these villages. His brother and heir Peter Rantzau built a Renaissance residence in the form of a water castle, now the symbol of the town, and the castle church around 1595. The new schloss buildings were made with parts of the torn-down mansion, on a rectangular island surrounded by a defensive moat. The following year, the chapel was completed. It was modelled on Schloss Glücksburg, built a few years earlier. Four octagonal towers were added later with copper-covered torn heads and lanterns.
The Rantzaus' estate was heavily indebted by the middle of the 18th century and, in 1759, was acquired by the businessman Heinrich Carl von Schimmelmann. Schimmelmann remodelled the castle and village in the baroque style and the current layout of the town reflects these plans.
Historians in Germany consider the building one of Schleswig-Holstein's best-known Renaissance buildings and attractions. Open to the public, it is surrounded by an English park, a chapel, a watermill and a museum.References:
Easter Aquhorthies stone circle, located near Inverurie, is one of the best-preserved examples of a recumbent stone circle, and one of the few that still have their full complement of stones. It consists of a ring of nine stones, eight of which are grey granite and one red jasper. Two more grey granite stones flank a recumbent of red granite flecked with crystals and lines of quartz. The circle is particularly notable for its builders' use of polychromy in the stones, with the reddish ones situated on the SSW side and the grey ones opposite.
The placename Aquhorthies derives from a Scottish Gaelic word meaning 'field of prayer', and may indicate a 'long continuity of sanctity' between the Stone or Bronze Age circle builders and their much later Gaelic successors millennia later. The circle's surroundings were landscaped in the late 19th century, and it sits within a small fenced and walled enclosure. A stone dyke, known as a roundel, was built around the circle some time between 1847 and 1866–7.