There is this document reference number: CONTRATACION,5360,N.81
For Pars: http://www.archivesportaleurope.net/web/guest
It has a testamento that starts Imagen 25 for Pedro Dias De Llano, who is of Asturias, that passed away at Villa De Llerenas of Sombrerete, Zacatecas, Mexico.
Testamento 1676 Sombrerete,
made mistake in the reference number. The correct one is:
CONTRATACION,459,N.2,R.2