By the end of the 18th century, the congregation had slipped into decadence, several houses had been suppressed and in 1791 the Commission to Examine Religious Orders closed almost all novitiates in Portugal. The French invasion and occupation of Portugal (1807–11) left the canons further diminished.
By the end of the 18th century, the congregation had fallen into decline, several houses were suppressed, and in 1791 the Commission to Examine Religious Orders closed most novitiates in Portugal. The French invasion and occupation of Portugal (1807–11) further weakened the canons.