MISSIS TRIGINTA
SANCTVS GREGORIVS
ANIMAM SVI MONACHI LIBERAVIT

GREGORIO I P M CELEBRANTI IESVS
CHRISTVS PATIENS HEIC VISVS EST

HAC IN CELLA TT GREGORI I PONT MAX
CELEBRATAE MISSAE ANIMAS A CRVCI A
PVRGATORI SOLVVNT