The Agincourt Hymn

Luca Massaglia (http://www.lucamassaglia.com/) plays "The Agincourt Hymn" by John Dunstable (c. 1390-1453).

The arrangement for organ was made by Edward Power Biggs (1906-1977), British-born American concert organist and recording artist.
The Agincourt Hymn (sometimes known as "The Agincourt Song", "The Agincourt Carol", or by its chorus and central words, "Deo gratias Anglia") is an English folk song written in the early 15th century. It recounts the 1415 Battle of Agincourt, in which the English army led by Henry V of England defeated that of the French Charles VI in what is now the Pas-de-Calais region of France.
The carol is one of thirteen on the Trinity Carol Roll, probably originating in East Anglia, that has been held in the Wren Library of Trinity College, Cambridge since the 19th century.
The hymn is featured in Laurence Olivier's 1944 film "Henry V".

Lyrics:

Deo gratias Anglia redde pro victoria!

Owre Kynge went forth to Normandy
With grace and myght of chyvalry
Ther God for hym wrought mervelusly;
Wherefore Englonde may call and cry.

Deo gratias!
Deo gratias Anglia redde pro victoria!

He sette sege, forsothe to say,
To Harflu towne with ryal aray;
That toune he wan and made afray
That Fraunce shal rewe tyl domesday.

Deo gratias!
Deo gratias Anglia redde pro victoria!

Then went hym forth, owre king comely,
In Agincourt feld he faught manly;
Throw grace of God most marvelsuly,
He had both feld and victory.

Deo gratias!
Deo gratias Anglia redde pro victoria!

Ther lordys, erles and barone
Were slayne and taken and that full soon,
Ans summe were broght into Lundone
With joye and blisse and gret renone.

Deo gratias!
Deo gratias Anglia redde pro victoria!

Almighty God he keep owre kynge,
His peple, and alle his well-wyllynge,
And give them grace wythoute endyng;
Then may we call and savely syng:

Deo gratias!
Deo gratias Anglia redde pro victoria!