Brigadier Pedro de Rivera, who visited the northern presidios from 1724 to 1728, suggested to the viceroy Juan de Acuña, Marquis of Casafuerte, the political and administrative reorganization of the northwest provinces. The viceroy supported the idea, and it was approved by Philip V of Spain in 1732, and executed the following year with the appointment of the first governor, Manuel Bernal de Huidobro, at that time mayor of Sinaloa. In the branches of government, finance and war, the governor was directly subject to the viceroy, while the field of justice was under the jurisdiction of the Royal Audience of Guadalajara (Real Audiencia of Guadalajara) of the Viceroyalty of New Spain.