Küblingen was first mentioned in a document in 966 as "Cugelinge". The places on the Werla-Magdeburg military road are listed in Otto I's imperial deed (now in the Saxony-Anhalt State Archives in Magdeburg). This means that at the time of the Saxon emperors and even before that, Küblingen was a stopover on the important west-east route from Aachen to Magdeburg. The royal road Werla-Schöningen-Magdeburg led past here. This Dietweg avoided the damp valleys and depressions and only rarely touched villages. Since references to the Dietweg often appear on old field maps, it can be reconstructed from Werla to Seehausen. A "Dey-Weg" delimits the Schliestedter corridor in the south, south of Berklingen. On the Theil-Wege and Am Thie, near Watzum, a field is called "Am Hoher Weg". Emperor Otto I often used the Werla-Magdeburg route. At Hildesheim and at Haldensleben it is still called Hellweg. Between Werla, the old imperial palace, and Magdeburg, the archbishopric and gateway to the east, were the large intermediate stations of Schöningen and Seehausen, each a day's journey of 25 to 30 kilometers apart. In between lay the royal courts of Biewende, Denkte, Semmenstedt, Uehrde, Küblingen, Barnstorf, Dreileben, Rodensleben, Dodeleben, Ottersleben and Diesdorf. The imperial deed of 966 is written in Latin and signed by Otto l. signed. Otto stayed before his third campaign in Italy, to which Pope John XIII, who had been deposed by the Romans in an uprising, took him. called in Quedlinburg. His policy, which was successfully aimed south, is judged differently today. In a document from the year 966, Emperor Otto I testified that he had given Count Mamaco the following places: Cugelinge, Veltheim, Hessenheim. 1260 sell Baldwin v. Dalen senior and junior the Marienberg monastery near Helmstedt the Bailiwick in Küblingen for 320 marks of fine silver. In 1330 the chapel and the church in Küblingen were added to the monastery's possessions. The monastery spent this land on hereditary interest. Philipps, bailiff of the St. Blasii monastery, took over the farm in 1614 with the disapproval of Duke Friedrich Ulrich - an action that was reversed. In 1630 the convent of the monastery approved the assignment to the captain-lieutenant Christoph v. i.e. Streithorst in Erbzins, together with a "Holzfluck, called Lah". The estate was included in the knight register.