In the pre-1970 General Roman Calendar, his feast is kept on 21 March, the day of his death according to some manuscripts of the Martyrologium Hieronymianum and that of Bede. Because on that date his liturgical memorial would always be impeded by the observance of Lent, the 1969 revision of the General Roman Calendar moved his memorial to 11 July, the date that appears in some Gallic liturgical books of the end of the 8th century as the feast commemorating his death (Natalis S. Benedicti). There is some uncertainty about the origin of this feast. Accordingly, on 21 March the Roman Martyrology mentions in a line and a half that it is Benedict's day of death and that his memorial is celebrated on 11 July, while on 11 July it devotes seven lines to speaking of him, and mentions the tradition that he died on 21 March.photo
The Eastern Orthodox Church commemorates St. Benedict on 14 March.
St. Benedict, ora pro nobis!
I also asked @MarquetteU spox to point to a conservative activist that the campus had sponsored (not student orgs) no response yet — Et...