▁salt ▁mine ▁of ▁Nau heim , ▁which ▁was ▁very ▁important ▁for ▁the ▁economy ▁of ▁Han au . ▁In ▁an ▁attempt ▁to ▁sid eline ▁Frederick ▁Cas imir ' s ▁relatives , ▁who ▁were ▁opposed ▁to ▁s elling ▁off ▁large ▁parts ▁of ▁the ▁county , ▁George ▁Christian ▁tried ▁to ▁become ▁reg ent ▁of ▁Han au . ▁ ▁The ▁relatives ▁then ▁engaged ▁the ▁emer gency ▁bra ke ▁and ▁st aged ▁a ▁coup ▁d ' état . ▁ ▁After ▁length y ▁negoti ations , ▁Emperor ▁Leopold ▁I ▁decided ▁that ▁Count ▁Pal at ine ▁Christian ▁II ▁of ▁Zwe ibr ücken - B ir ken feld ▁and ▁his ▁sister ▁Count ess ▁Pal at ine ▁Anna ▁Mag dal ena ▁of ▁Bir ken feld - B isch we iler , ▁the ▁guard ians ▁of ▁Frederick ▁Cas imir ' s ▁nep he ws ▁and ▁success ors ▁were ▁appointed ▁co - reg ent ▁of ▁Han au , ▁with ▁the ▁right ▁to ▁v eto ▁the ▁dec isions ▁of ▁the ▁Count . ▁ ▁Their ▁position ▁would ▁be ▁supported ▁by ▁the ▁army ▁of ▁H esse - K ass el . ▁ ▁Frederick ▁Cas imir ' s ▁advis ors , ▁including ▁George ▁Christian , ▁were ▁released ▁from ▁prison . ▁ ▁Land gra vi ate ▁of ▁Hom burg ▁ ▁Also ▁in ▁ 1 6 6 9 , ▁George ▁Christian ▁purchased ▁H esse - Hom burg ▁from ▁his ▁brother ▁William ▁Christoph . ▁ ▁In ▁ 1 6 7 1 , ▁he ▁sold ▁H esse - Hom burg ▁to ▁his ▁largest ▁credit ors , ▁Johann ▁Christian ▁von ▁Boy ne burg