The Roman Missal: Proper of Saints, November (English) 13
1[November 15. St Gertrude, Virgin.—Double.]
2[Mass.—Dilexisti, for a Virgin, page XLVIII. except—]
3Prayer. Deus qui in corde. O God, who didst prepare for thyself an agreeable habitation in the heart of the blessed virgin Gertrude, by her merits and intercession, mercifully remove the defilements of our hearts, and grant us to rejoice in her society. Through our Lord, &c.