He was named Royal Governor of Chiloé by the King of Spain in 1708 by doing a monetary contribution—or in other words de facto purchasing the office.

When Garzón did not compel with the order Marín gathered the cavalry of Chacao and requested the aid of the militia of Castro.

Garzón chose to leave Calbuco with "all the soldiers of the fort and 40 indios reyunos" and travelled to Central Chile via the Nahuel Huapi route.

[3] Local Huilliches took advantage of the conflicts among the Spaniards and the weakening of the forces caused by Garzón's departure and launched a considerable rebellion.

In face of the events and Garzón's accusation Ustariz sent Pedro de Molina Vasconcelos as judge to the Governorate of Chiloé.