In its completed form the Rosary became the favourite devotion of all, high and low, clerical and lay, and a special confraternity, favoured by the popes and endowed with indulgences, was formed for its spread and encouragement.[580] The Rosary was a source of innumerable graces not only to individual believers, but even Christendom as a whole had recourse to its assistance in times of general distress and danger, especially when pressed by the Turks. Remarkable answers to prayer, among which was numbered the victory of Lepanto (7th October 1571), first moved Pius V. to institute a feast in thanksgiving. Gregory XIII. gave stability to this feast by ordering in 1573 that in every church possessing a chapel, or at least an altar of the Rosary, it should be celebrated as “the Feast of the Holy Rosary” on the first Sunday in October. Clement X. granted the feast to the whole of Spain without this proviso. Clement XI. extended the feast to all Christendom in consequence of the victory gained at Peterwardein by Prince Eugene on the 5th August 1716.[581] A commemoration much beloved by the people, is that of the Seven Dolors of Our Blessed Lady, which cannot be regarded as a festival in the usual sense of the term. It takes place on the Friday after Passion Sunday. Its introduction was prepared by the ascetic literature of the twelfth century, in which also its roots are to be sought. The pious monk Eadmer in his treatise “On the Excellencies of the Virgin Mary” chapter v. (see App. x., page 446) deals with the share taken by Our Lady in the sufferings of her Son. The writing of an unknown author (_De Passione Christi et Doloribus et Planctibus Matris Ejus_, MIGNE, _Patr. Lat._, clii.), attributed to St Bernard, while full of deep piety, is yet rather effeminate and sentimental. The third treatise belonging to this subject is composed by Amadeus, a disciple of St Bernard, Abbot and afterwards Bishop of Lausanne († 1159), whose fifth homily is entitled _De Mentis Dolore et Martyrio B.M.V._ (MIGNE, _Patr. Lat._, clxxxviii., 1325-1331). He deals with Our Lady’s share in her Son’s sufferings in a merely general way and in outline. At a later date, the matter was treated in more detail and with additions, so that the Seven Dolors of Our Lady were the result. In this form, the matter was taken up by the Servites, whose order came into existence in 1240, and to whom Innocent IX. in 1688 granted a second feast of the same name to be celebrated out of Lent on the third Sunday in September. 7. _The Feast of St Joseph.[582] The Cultus of SS. Joachim and Anne_