Opes decusque regium reliqueras. Urban VIII. [St. Elizabeth of Portugal.] This hymn is found in Maphaei S. R. E. Card. Barberini nunc Urbani VIII. Poemata, Rome, 1631, p. 121, entitled, "On St. Elisabeth Queen of Portugal." It was not included in the Roman Breviary, 1632, but was incorporated in later editions (e.g. Antwerp, 1697, p. 881), as the hymn at Second Vespers on her festival (July 8). Besides being in recent editions of the Roman Breviary, the text is also in Daniel, iv. p. 304. Translated as:—
1. Riches and regal throne, for Christ's dear sake. By E. Caswall, in his Lyra Catholica, 1849, p. 161, and his Hymns & Poems, 1873, p. 88. It is used in Roman Catholic hymn books for Missions and Schools.
2. Elizabeth, thy regal wealth and fame. By J. Wallace, in his Hymns of the Church. 1874. [Rev. James Mearns, M.A.]
--John Julian, Dictionary of Hymnology (1907)