 Conflict with her brother-in-law, Carlos María Isidro de Borbón, who aspired to the throne by virtue of a supposedly valid Salic Law - already repealed by Carlos IV and Ferdinand VII himself - led the country into the First Carlist War.
<fluency>  Conflict with her brother-in-law, Carlos María Isidro de Borbón, who aspired to the throne by virtue of a supposedly valid Salic Law - already repealed by Carlos IV and Ferdinand VII himself - led the country into the First Carlist War.
 Conflict with her brother-in-law, Carlos María Isidro de Borbón, who aspired to the throne by virtue of a supposedly valid Salic Law - already repealed by Carlos IV and Ferdinand VII himself — led the country into the First Carlist War.