Chrysobergus, Lucas a Greek ecclesiastical writer, was appointed patriarch of Constantinople in 1155. He presided over the synod which was held there in 1166, and died in 1167. Of his works there are left but thirteen Decreta Synodalia (contained in the Jus Graeco-romanum of Leunclavius), and the following are the titles of some of the decrees recorded by him: De Clericis qui se Immiscent Scecularibus Negotiis; De Indecoris et Scencis Ritibus Sanctorum Notariorum Festo Abrogandis; Ne Clerici Turpilucrifiant aut Medici. There are in the imperial library of Vienna two poems, which are attributed to Chrysobergus. See Hoefer, Nouv. Biog. Generale, s.v.