The New Catholic Encyclopedia acknowledges that especially from the 9th to the 11th century “simony pervaded the monasteries, the lower clergy, the episcopacy, and even the papacy. ”
” New Catholic Encyclopedia ” tunnistab, et eriti just 9. — 11. sajandini ” vallutas simoonia kloostrid, levis alamate vaimulike, piiskopkonna ning isegi paavstide seas ”.