Adolf IV of Holstein, Count of Schauenburg
Adolf IV (before 1205 – 8 July 1261), was a Count of Schauenburg (1225–1238) and of Holstein (1227–1238), of the House of Schaumburg. Adolf was the eldest son of Adolf III of Schauenburg and Holstein by his second wife, Adelheid of Querfurt.
1261Jul, 8
Adolf IV of Holstein
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Events on 1261
- 25Jul
Empire of Nicaea
The city of Constantinople is recaptured by Nicaean forces under the command of Alexios Strategopoulos, re-establishing the Byzantine Empire.