The four Tantum ergo are settings of the hymn "Tantum ergo" composed by a composer of what nationality?
Anton Bruckner Josef Anton Bruckner (] ; (1824--)04 1824 (1896--)11 1896 ) was an Austrian composer best known for his symphonies, masses, and motets. The first are considered emblematic of the final stage of Austro-German Romanticism because of their rich harmonic language, strongly polyphonic character, and considerable length. Bruckner's compositions helped to define contemporary musical radicalism, owing to their dissonances, unprepared modulations, and roving harmonies.
Engarandus Juvenis Engarandus Juvenis, "Enguerrand the Younger" (fl. 1480s-90s) is a composer, presumed to be of French origin, whose three known works are all preserved in a single codex in the Cistercian monastery of Staffarda, Italy. He is notable as the composer of the earliest surviving example of a polyphonic setting of a Requiem mass complete with Dies Irae section.