Education
He studied philosophy and theology at the seminar of Issy and studied law in Toulouse.
He studied philosophy and theology at the seminar of Issy and studied law in Toulouse.
In 1872 he became a practicing lawyer in his hometown of Saint-Gaudens, later earning distinctions as secretary of the conseil de l"Ordre (1877) and as bâtonnier (1888). With prehistorian Édouard Piette, he conducted several archaeological excavations in the Pyrenees. In 1875 the two men uncovered cromlechs (megalithic structures) at Mount Espiau, and later discovered tumuli at the plateau of Lannemezan (1877-1878) as well as an early Iron Age sépultures à incinération, found at the plain of Rivière, located southwest of Saint-Gaudens.
In 1879 the two men excavated a Gallo-Roman cemetery at Garin.
An academic association in Bagnères-de-Luchon known as the Académie Julien Sacaze is named after him.
In 1885 he was a founding member of the Société des études du Comminges (1885).