Gualtiero of Mortagne (GUALTIERO DI MORTAGNE) - Catholic Encyclopedia, Vol. VI, p. 716

Machine translation of the 1948–1954 Italian original. The original text is authoritative.

GUALTIERO di MORTAGNE. - Medieval philosopher and theologian, teacher of rhetoric and philosophy at S. Genoveffa in Paris from 1126 to ’44, died bishop of Laon in 1174.

At that time the problem of universals was debated, and Giovanni di Salisbury presents G. as the author of the theory of status, one of the realist theories, which nevertheless link the universal to the singular. “The followers of G. di M. — says Giovanni di Salisbury — distinguish different status and say, for example, that Plato, insofar as he is Plato, is an individual; insofar as he is man, he is a species; insofar as he is animal, a genus...” (Metalogicon, II, cap. 17). G. is also the author

Article illustration — (courtesy of p. Gennaro Moretti) GUALA, PIETRO FRANCESCO - The canons of Lu in the collegiate church of S. Valerio at Lu Monferrato.

of a writing De Sancta Trinitate and of the 7th treatise (De coniugio) of the Summa sententiarum of Ugo di S. Vittore.

BIBL.: H. Willner, Des Adelard von Bath Traktat De eodem et diversis (Beiträge zur Gesch. der Philos. des M. A., 1), Münster 1903; Überweg, II, p. 211. Sofia Vanni Rovighi

GUALTIERO (WALTER) di REINAU: V. ALBERICO DI REIMS.