When is Saint Margaret's feast day?

There are a number of Saints named Margaret. Please be specific.
St. Margaret Mary Alacoque, Virgin (b. 1647 - d. 1690)

Feast day: October 17 (cf. Thurston & Attwater 1956, p. 134)

Canonized: 1920

REFERENCES

Thurston, H. Attwater, D. Butler's Lives of the Saints, Vol. IV, (Notre Dame, IN: Ave Maria Press, Inc., 1956).