Of the lineage of Herbort we know nothing[1]; his ancestors must have been among the colonists who had been planted by the Emperors on the northern frontier to occupy the land conquered from the heathen. He seems himself to have been a man of substance and position; he already used the arms, the double trefoil, which are still borne by all the branches of his family. His descendants are often mentioned in the records of the Guild; his son or grandson, Rudolph or Rule, represented the town in a conflict with the neighbouring Dukes of Brunswick. It was his son Nicolas, or Claus as he is generally called, who founded the fortunes of the family; he attached himself closely to the cause of the Margrave, whom he supported in his troubles with the Duke of Brunswick, and whose interests he represented in the Town Council. He was amply rewarded for his fidelity. After a quarrel between the city and the Prince, Bismarck left his native home and permanently entered the service of the Margrave. Though probably hitherto only a simple citizen, he was enfiefed with the castle of Burgstall, an important post, for it was situated on the borders of the Mark and the bishopric of Magdeburg; he was thereby admitted into the privileged class of the _Schlossgesessenen_, under the Margrave, the highest order in the feudal hierarchy. From that day the Bismarcks have held their own among the nobility of Brandenburg. Claus eventually became Hofmeister of Brandenburg, the chief officer at the Court; he had his quarrels with the Church, or rather with the spiritual lords, the bishops of Havelburg and Magdeburg, and was once excommunicated, as his father had been before him, and as two of his sons were after him.