Rubuta ci gaba don wannan sakin layi - an haifi Efraín Trelles a 1953, a Andahuaylas. Masanin tarihi wanda aka horar da shi a tarihin mulkin mallaka, wanda ya kammala karatunsa daga Jami'ar Katolika ta Pontifical na Peru, tare da takaddar da ta zama ta gargajiya: "Lucas Martínez Vegazo: aiki na farko na Peruvian encomienda". Ya kasance ɗaya daga cikin waɗanda suka fara gabatar da nazarin bayanai da ƙirar kwamfuta a cikin bincikensa game da amincin kurakas a cikin Tawaye na Túpac Amaru II.
, wanda ya wallafa tare da Magnus Mörner a 1986.