 The following October he went to Mexico City to present his credentials to the new viceroy, the Count of Coruña.In consideration of the appointment of governor, Carvajal undertook to colonize the territory at his own expense, being allowed to repay himself out of the revenues.His original jurisdiction was to comprise a somewhat ill-defined territory, beginning at the port of Tampico, extending along the River Pánuco, and thence turning northward; but it was not to exceed 200 leagues either way.