Between 1979 and 1980, a team of archaeologists led by Professors Bertila Galván Santos and Juan Francisco Navarro Mederos executed an excavation of urgency in the Church of the Assumption (San Sebastián de La Gomera), a building that would be subjected to a major reform. At the deepest level of the burials located in the former Main Chapel, beneath the remains of other dead, the experts discovered the skeleton of a young man who had a lateral skull fracture and who was lying in an oblique orientation relative to that of the temple’s nave. The presence of a blanca –a Castilian coin minted during the reign of Enrique IV– at a level just above that of the remains allowed to date the burial as possible before 1471. Fragments of Andalusian tiles and stone-and-mud rubble ventured the existence of an ancient chapel, oriented differently from the current church, which would explain the unusual position of the body.NAVARRO (1984), pp. 588-590, 593-594.
Even without the modern techniques of genetic identification, evidence suggested a name in an almost incontestable way: that young man was likely to be Guillén Peraza, only legitimate son of Fernán Peraza the Elder.