Doctrinal writer and compiler, and a canon of León Cathedral. Between 1400 and 1421 he compiled the anonymously published Libro de los exemplos, the best of the mediaeval genre known as Alphabeta exemplorum published incomplete by P de Gayangos in Vol 51 (1860) of the Biblioteca de Autores Españoles. A Morel-Fatio discovered the missing A–B section and published the complete work in Romania, Vol 7. Sánchez Vercial translated the Disciplina clericalis almost entire, with elements from the Vitae patrum, St Isidore, Barlaam, and Josaphat, and the Gesta Romanorum. From 1421 to 1425, he compiled Sacramental, a devotional work, which was published c.1470 in Sevilla, according to Vindel the first book printed in Spain. It was translated into Catalan as Lo sagramental (Lérida, 1495).