Vexilla_Regis

Vexílla Regis ~Gregorian his hymn of Vespers ,of the Feast of the Exaltation of the Holy Cross, Vexílla Regis, was the sorrowful chant, rallying supporters of the Faithful Catholic and Royal Army(resistors to the Revolution) during the French revolutionary wars of Vendee region of Western France.

The original Latin text was composed by Venance Fortunat, Bishop of Poitiers in the sixth century, for the feast of return of the relics of the Holy Cross.
below is a Translation from the Latin, via the French
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Vexílla Regis pródeunt
The banners of the king advance

Fulget Crucis mystérium.
Here shines the mystery of the cross, where Life has suffered death, and his death made life.
On the side, pierced by iron cruel spear, flow, to clear our crimes, blood and water.
So fulfilled the oracle of David saying the nations in his verses inspired: God reigns by The wood.
Tree precious and shining glory, dressed in the purple of the King, was called you in your noble trunk to reach memb