He completed teacher training studies in Almería, where he worked as a primary education teacher. Later, he studied at the Universities of Granada and Salamanca, where he got a degree in Classical Philology. In 1972, he obtained a position as a Latin teacher at the Secondary Education Centre of Cangas do Morrazo, Pontevedra. In 1981, he earned his PhD in Classical Philology at the Universitat Autònoma de Barcelona.
As a teacher, he has taught Latin to several generations of Galician students since 1973, first at the Secondary Education Centre of Cangas do Morrazo, and then at the Secondary Education Centre of As Lagoas and at the Galician Institute of Distance Education (Ingabad) in Ourense. Since 1990, he is a Latin Professor at the Faculty of History of the University of Vigo, and at the Spanish Distance University (UNED).
He has published the following books: PSEUDO BOECIO: ‘Disciplina escolar’, Ed. PPU, Barcelona (1990), ‘San Martín de Tours, patrono de Ourense, en los textos antiguos’, Fundación Caixa Galicia, Ourense (1994), ‘San Martiño de Tours na súa época’, Fundación Caixa Galicia, Ourense, co-authored with Marta García González (1996), ‘Los Dísticos de Catón comentados’, University of Vigo (1997) and ‘Los amores humanos de Zeus’, University of Vigo (1998). He has transcribed and translated the ‘Libro de horas de la condesa de Bertiandos’, Xuntanza Editorial, A Coruña (2005). He has in press the critical edition of the Antidotarium by Arnaldus de Vilanova, as part of the prestigious collection AVOMO, and he is currently preparing the critical edition of the Latin translation of the Koran, by Germanus of Silesia.
He was co-founder and member of the cultural association Trebo, and published several papers in the association’s review. He was also the director of the review after the death of its first director, José Luís López Cid.
Web page: http://webs.uvigo.es/masegosa/