Marian hymns

Every October/May, I introduce a Marian hymn as the recessional which "helps" the congregation to learn a new (and re-useable) hymn tune. So far in past years I have done:

Daily, Daily (OMNE DIE)
Sing of Mary (PLEADING SAVIOR)
O Queen of the holy rosary (ELLACOMBE)
An obscure LM hymn (PUER NATUS)

looking for new tune that I can use next month - any suggestions?