 Nevertheless, the utility of a new collection was so evident that there may be no other motives than those the pope gives in the Bull "Rex pacificus" of 5 September 1234, viz., the inconvenience of recurring to several collections containing decisions most diverse and sometimes contradictory, exhibiting in some cases gaps and in others tedious length; moreover, on several matters the legislation was uncertain.The "Quinque compilationes antiquæ" was a series of five of these collections of pontifical legislation from the "Decretum" of Gratian (c. 1150) to the pontificate of Honorius III (1150-1227).Raymond executed the work in about four years, and followed in it the method of the "Quinque compilationes antiquæ".