Following the establishment of the Frankish Empire, and following the reign of Charlemagne, the holy day, which was already celebrated on November 1, became a holy day of obligation by decree of Pope Gregory IV and Louis the Pious, who was king over a portion of Charlemagne’s former empire. After her death in 893, her husband built a church, intending to dedicate it to her. All Saints’ Day Party Game Ideas Here’s a round-up of easy Saint game ideas, including this game- canonize the Saints ring toss (complete with glow stick halo)! Another version of “Canonize the Saints” using 18 inch dolls Make Saint-Themed guessing jars! The feast of All Saints achieved great prominence in the ninth century, in the reign of the Byzantine Emperor, Leo VI «the Wise» (886.911). His wife, Empress memorated on December 16.lived a devout life.