Canons of St MARK, a congregation of regular canons, founded at Mantua, by Albert Spinola a priest, towards the end of the XIIth century. Spinola made a rule for them, which was approved, corrected, and confirmed by several succeeding popes. About the year 1450, they were reformed, and followed only the rule of St Augustine. This congregation having flourished for the space of four hundred years, declined by little and little, and is now become extinct.