After the Treaty of Cordoba, wherein Ferdinand VII took the offer of the Mexican Crown with a grain of salt and forbid any bourbon from accepting it either, an offer was sent to Archduke Charles the Duke of Teschen, the famous duke who had defeated Napoleon in Aspern-Essling. OTL, the offer was rejected because Ferdinand VII immediately declared that any prince taking the offer would make his dynastic house an enemy of Spain and since Spain was still considered a great power back then, the Archduke declined. What if Ferdinand VII was late in his declaration and the Archduke accepted the offer arriving in Mexico with his family and being proclaimed Emperor of the Mexicans?
What would be the consequences of this?
What would be the consequences of this?