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1 This poem has given four hymns to the Roman Breviary:-- (1) For the Feast of the Transfiguration, Vespers and Matins consisting of ll. 1-4, 37-40, 41-44, 85-88.
(2) For the Epiphany at Lauds, beginning O sola magnarum urbium, ll. 77-80, 5-8, 61-72.
(3) For the Feast of Holy Innocents at Matins, beginning Audit tyrannus anxius, ll. 9