sentences:  Whether the ending "—born" refers to the spring or the cabin might be a pointless question, for it is known that springs and wells were often housed in a little hut to keep the water clean.In the historical record, on the other hand, it is known that until 1290, the Schönbornerhof belonged to the knight Sir Berthold von Grumbach, a courtier of the Waldgraves of Dhaun.Together with his holding of Sulzbach, Berthold bequeathed the estate to his sons, Berthold, Hartrade and Johannes, who were Knights-Hospitaller priests of the Holy House of the Hospital of Ulm.