This hymn is used for Vespers & Matins on the Feast of St. Elizabeth of Portugal in the Extraordinary Form.
Pure, meek, with soul serene,
Sweeter to her it was to serve unseen
Her God, than reign a queen.
Now far above our sight,
Enthron’d upon the azure star-pav’d height,
She reigns in realms of light;
So long as time shall flow,
Teaching to all who sit on thrones below,
The good that power can do.
Praise to the Father be;
Praise to the Son; praise, Holy Ghost, to Thee,
Through all eternity.
Words: Pope Urban VIII, 1632.; tr. Fr. Edward Caswall, C.O., 1849.
Tune: Unknown… Tune does not seem to exist in this meter
The original Latin text of this hymn may be found here.