Vgo, or Ugo, for "Hugues", was a stonemason active in Provence during the twelfth century. He left his signature on several Romanesque religious edifices in Provence and mainly in Tricastin:
Vaison Cathedral Notre Dame d'Aubune St Blaise de Bauzon St Sepulchre Chapel in Beaumont Crypt of Apt Cathedral
He is not to be confused with Master Hugo, an English artist of the same century.
References Révoil, Henri. Architecture Romane du Midi de la France. Paris: Morel, 1874. Vols. 2 and 3. Folio. 123 plates. Sold as a collection of prints. Mainly engravings with a few chromolithographs. Rouquette, Jean Marie. Provence Romane. MCMLXXIV, Zodiaque La Nuit des Temps