Beatus a Spanish theologian of the Benedictine order, and abbot of the monastery of Val-Gabado in Asturia, died in 789. He wrote, Libri de Adoptione Christi Filii Dei, against Elipandus, published in the collection Veter. Scriptor., of Peter Stewart: — a Commentarium upon the Apocalypse of St. John, which is unpublished. See Hoefer, Nouv. Biog. Generale, s.v.