The cellars of the house belonged to the original conventual buildings of the priory. The abbey church and conventual buildings are of Romanesque origin. The conventual buildings of the priory were pulled down soon after the dissolution. Francis I effective authority to nominate almost all abbots and conventual priors in France. The monastery church thus became one of the "conventual" cathedrals. A central tower would have been consistent with a Norman conventual church. A second smaller dormitory for the conventual officers ran from east to west. It is not entirely clear how the term "Conventual" arose. The books in the monastery of the Conventual Franciscans (Minoritenkloster) were stored here. The Order of Friars Minor Conventual (or Conventual Franciscans), is a mendicant Catholic religious order. There are four provinces of Conventual Franciscans in the United States. On the other hand, there were cases in which two different conventual Masses were celebrated. The other conventual buildings also are noteworthy. The origin of the conventual women Tertiaries has never been very clearly worked out. In 1969, Callahan entered the novitiate of the Conventual Franciscans in Lake Forest.