MARIALES, XANTES. - Dominican theologian, born in Venice around 1578, died there at the end of April 1660. He studied in Spain and, in homage to that nation, changed his surname from Pinardi to the one by which he is known, MARIALES. Returning to Italy, from 1610 he taught theology in Padua, where he also served as regent of studies until 1624. That year, he retired to Venice to dedicate himself entirely to study and, held in high esteem by all, lived a very secluded life.
In this solitude, he wrote several works, among which stand out the *Controversiae ad universam Summam theologiae* (Thomas A. mecon ad IV libros Magistri sententiarum) (Venice 1624). In 1638, he completed another substantial work, which, due to various circumstances, could not be published until 1660: *Bibliotheca interpretum ad universam Summam theologiae d. Thomae A.* (ibid. 1660). Because of his excessive exaltation of the doctrine of St. Thomas, which he almost equated with Revelation, his works were placed on the Index (22 June 1662).
With his usual vehemence, he participated in the struggle against Gallicanism and wrote (under the pseudonym Pietro P. Torelli): *Quali presagimenti possono haversi delle presenti sconvolte dell'Austria e della Spagna e da i progressi del geretici e de' Francesi* (Cologne 1643) and *Stravaganze novamente seguite nel cristianesimo regno di Francia* (ibid. 1646). Under the pseudonym S. Campeggi, he published: *Enormità inaudite novamente uscite in luce nel cristianesimo regno di Francia* (Frankfurt 1649). The Venetian Senate, to please Louis XIV, ordered M. to leave the Republic. He first went to Milan, then to Ferrara, and finally to Bologna. Shortly before his death, he was able to return to Venice. In Bologna, he published a commentary on the *Quaestiones disputatae* of St. Thomas (1658).