At the age of thirty five, he decided to live as a hermit in the area of Condat.
These included Condat Abbey, which was the nucleus of the later town of Saint-Claude, Jura), Lauconne (later Saint-Lupicin, as Lupicinus was buried there), La Balme (Beaume) (later Saint-Romain-de-Roche), where Romanus was buried, and Romainmôtier (Romanum monasterium), now in the canton of Vaud in Switzerland.
Two lives of him are in existence: one by Gregory of Tours in the Liber vitae patrum (Mon.
Merov., I, 663), and an anonymous Vita Sanctorum Romani, Lupicini, Eugendi [ibid., III, 131 sqq.
Benoît, "Histoire de St-Claude", I (Paris, 1890); Besson, "Recherches sur les origines des évêchés de Genève, Lausanne, et Sion" (Fribourg, 1906), 210 sqq.