With the collapse of the Confederacy in the spring of 1865 and the ensuing surrender of its main armies, von Borcke returned to his native Prussia. He resumed his military career and fought in the 1866 Austro-Prussian War in the personal staff of Prince Friedrich Karl of Prussia, receiving the coveted Order of the Red Eagle for his gallantry. He married Magdalene Honig and raised three sons. Still suffering lingering effects from his Middleburg wound, he retired from the Prussian Army in 1867 and bought an estate at Sichts, West Prussia (today Żychce, Poland). After his father's death he returned to Giesenbrügge, where he proudly flew the Confederate flag from its battlements.
http://en.wikipedia.org/wiki/Heros_von_Borcke