A shekara ta 1670, ya shiga cikin yarjejeniyar Dover, wata ƙungiya tare da dan uwansa na farko Sarki Louis XIV na Faransa. Louis ya yarda ya taimaka masa a cikin yakin Anglo-Dutch na uku kuma ya biya shi fansa, kuma Charles ya yi alkawarin a ɓoye ya koma Katolika a wani kwanan wata da ba a bayyana ba. Charles ya yi ƙoƙari ya gabatar da 'yanci na addini ga Katolika da Protestant masu adawa da 1672 Royal Declaration of Indulgence, amma majalisar Ingila ta tilasta masa ya yi gudun hijira. A shekara ta 1679, Charles ya yarda da wahayin da ake kira Titus na Clarendon Code duk da cewa ya fi son tsarin siyasa na addini. Babban batun manufofin kasashen waje na farkon mulkinsa shi ne yakin Anglo-Dutch na biyu. A shekara ta 1683, an kashe shi tare da ɗan'uwansa Charles Whig, Duke na York, wanda aka haife shi a ranar 6 ga Fabrairun 1685.
Dokar Clarendon