Diego Valentín Díaz (died 1660) was a Spanish historical painter and a familiar of the Holy Office. He was a native of Valladolid. Díaz painted many important pictures for churches and monasteries, especially for the church of San Benito, now a barrack, and the convents of St. Jerome and of St. Francis, of which the Jubilee of the Porciuncula in the latter house was one of the most esteemed. His Holy Family, painted for San Benito, is now in the ; but his best work was the altar-piece representing the Annunciation of the Virgin painted for the Hospital for Orphan Girls which he founded at Valladolid. The architecture and perspective are in the finest style, and the statues introduced are admirably executed. Díaz died at Valladolid in 1660. He accumulated considerable wealth, the greater pa