The custom of reciting it in the morning apparently grew from the monastic custom of saying three Hail Marys while a bell rang at Prime. The noon time custom apparently arose from the noon time commemoration of the Passion on Fridays. The institution of the Angelus is by some ascribed to Pope Urban II, by some to Pope John XXII in the year 1317. The triple recitation is ascribed to Louis XI of France, who in 1472 ordered it to be recited three times daily. The form of the prayer was standardised by the 17th century.