Background
Adolf was the eldest son of Adolf III of Schauenburg and Holstein by his second wife, Adelheid of Querfurt.
Adolf was the eldest son of Adolf III of Schauenburg and Holstein by his second wife, Adelheid of Querfurt.
On 22 July 1227 with his coalition army Adolf was victorious in the Battle of Bornhöved against King Valdemar II of Denmark with his Danish army and German allies (the Welfs), and thus regained Holstein. In 1235 he founded Kiel and in 1238 Itzehoe. In 1238 he took part in a crusade in Livonia.
Also in 1244 he founded Neustadt in Holstein.
