Day of doom, the last, the greatest. [A translation of the Dies irae, dies illa.] By Archbishop Benson. Written at Rugby, and first published in the Wellington Collection Hymn Book, 1860, and repeated in subsequent editions. It is appointed to be sung before the Litany on the Sundays in Advent, and is from the Roman Missal.
-- John Julian, Dictionary of Hymnology (1907)