St. Wenceslaus, duke of Bohemia, ruled that country during its period of conversion to Christianity. His devotion to the Holy Eucharist is mentioned by St. Alphonsus in his book, Visits to the Blessed Sacrament.

Wenceslaus was in the habit of sowing and reaping with his own hands the wheat from which the hosts were to be made, and he used to rise in the night even during the coldest seasons to visit the Blessed Sacrament. His virtue was the cause of his death, for it aroused the antagonism of his evil-minded mother and brother, who caused him to be assassinated September 28, 938.

(Source: The New Roman Missal, Rev. F. X. Lasance)