Even as French laws and administration were gradually introduced, the formal annexation to the French Empire was declared only in 1808 after the outbreak of the conflict against Bourbonic Spain.
Kuigi Prantsuse seadused ja haldus viidi järk-järgult sisse, kuulutati ametlik annekteerimine Prantsuse keisririiki välja alles aastal 1808 pärast konflikti puhkemist Bourbonide Hispaaniaga.