Adolf III, Count of Schauenburg and Holstein (c. 1160 – 3 January 1225) was the ruler of the Counties of Schauenburg and Holstein. He is particularly remembered for his establishment of a new settlement for traders on the banks of the Alster near the Neue Burg in Hamburg.
In 1180 however Adolf defected from Henry, who thereupon drove him from Holstein. Adolf attached himself to Frederick Barbarossa (Emperor Frederick I), with whose help he regained his lordship in 1181 after the fall of Henry. In 1188 however Frederick turned down Adolf's claim to the town of Lübeck. Adolf accompanied him on the Third Crusade. In August 1190 he reached Tyre, where he left the crusading army and returned to Holstein to defend his lands against Henry the Lion, who had in the meantime returned from exile. In 1196, he went to the Holy Land for the second time for the Crusade of Henry VI, he then returned home in 1198.
Danish Campaigns in Holstein (1201)
The reign of Adolf III coincided with Denmark's attempts at expansion under Kings Canute VI and his brother and successor Valdemar II. After Adolf lost the Battle of Stellau in 1201 and was later taken prisoner in Hamburg by Valdemar, this expansion was successful for some decades. In captivity Adolf was forced to renounce his title to the County of Holstein in 1203 in order to gain his freedom, and on his release retired to the County of Schauenburg.[2] The reconquest of Holstein was left for his son and heir, Adolf IV of Holstein.
^750 Jahre Wennigsen 1200–1950 , Herausgegeben vom Vorbereitenden Ausschuss für die 750-Jahrfeier der Gemeinde Wennigsen Gedruckt 1950 bei den Buchdruckwerkstätten Hannover, S. 8
