After scouring the web for a while I found this site with information on the church in which Luis de Camargo and his wife Beatriz Alvarez were interred. Just scroll down to the bottom of the page and you will find a picture of the sepulchre with the inscription:
Sº DE LVIS DE CAMARGO E DE BEATRIZ
ALVAREZ SV MVGER. ACABOSE AÑO DE 1530
Luiz de Camargo is the oldest Camargo from whom all Camargos from Brasil, Mexico and Peru descend. Luis and Beatriz's sepulchre is located near the end of the nave of the Iglesia de San Martin, in Trujillo, Spain. The church itself is located in the same plaza as the equestrian statue of the conquistador Francisco Pizarro.