Sub tuum praesidium

"Sub tuum praesidium" (beneath thy compassion) is one of the oldest
hymn written by the Christians to the Lady Mary.

Sub tuum praesidium confugimus,
Sancta Dea Genitrix.
Nostras deprecationes ne despicias
in necessitatibus nostris,
sed a periculis cunctis
libera nos semper,
Virgo gloriosa et benedicta. Amen.

We fly to thy patronage,
O holy Mother God;
despise not our petitions
in our necessities,
but from all dangers
deliver us always,
O glorious and blessed Virgin. Amen.

http://en.wikipedia.org/wiki/Sub_tuum_praesidium