The Capture of Oppenheim or the Spanish capture of Oppenheim took place on 14 September 1620, at Oppenheim, Electorate of the Palatinate, between the Spanish army commanded by Don Ambrosio Spinola, Marquis of the Balbases, against the forces of the Electoral Palatinate led by Joachim Ernst, Margrave of Brandenburg-Ansbach, during the Palatinate campaign, in the context of the Thirty Years' War.