Agincourt Carol

The Agincourt Carol (sometimes known as the "Agincourt Song", the "Agincourt Hymn", or by its chorus and central words, "Deo gratias Anglia") is an English folk song written some time 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 other primary source for the carol is the contemporaneous Selden Carol Book held by the Bodleian Library in Oxford.
The carol is featured in Laurence Olivier's 1944 film "Henry V". The composer Ernest Farrar created his 1918 "Heroic Elegy: For Soldiers" on the basis of the Agincourt Carol.
Lyrics.
The pattern of a strophe (verse) sung in English followed by a burden (chorus) in Latin followed a structure typical of the religious carols of the period.
The Agincourt Carol was recorded by The Young Tradition on "Galleries", (with both the Early Music Consort and Dave Swarbrick contributing), and by the Silly Sisters (band) (Maddy Prior and June Tabor) on their second album "No More to the Dance".