His marriage was no less conflictual, as his wife, Carlota Joaquina of Spain, repeatedly conspired against her husband in favor of personal interests or those of her native Spain.
Hans ægteskab med den spanske prinsesse Carlota Joaquina var ikke mindre konfliktfyldt, da hun gentagne gange foretog sammensværgelser mod sin mand til fordel for sit hjemland Spaniens interesser.