[1] Odo was known as an ardent lover of books, and a great theologian who preached in French, English, and Latin.
The origin of the expression "To Jesus through Mary" is generally attributed to Louis Grignion de Montfort.
However, the idea of going through Mary to Jesus is much older, and was promoted by such authors as Ildephonse of Toledo (+667), Germanus of Constantinople (+773), John of Damascus (+750), et al.
In Odo of Canterbury (+1200) is found a passage which is even closer to the expression attributed to Montfort.
3, 490)[2] Odo died on 20 January 1200 and was buried in the lower part of the church at Battle.