Saint Alexius was chosen by the Cellite Brothers as their chief Patron saint in 1469. They subsequently became known as the Alexian Brothers. The Congregation of Alexian Brothers is a religious brotherhood within the Catholic Church. We were founded in 1334 and emerged from an earlier group or brotherhood known as Beghards. The old Rule Book of the Brothers called us "Alexian or Cellite Brothers". Many streets today in Holland and Belgium still bear testimony to the existence of the Brothers prior to the Reformation; almost every large town or city, including Amsterdam, has a street named "Cellabroeder Straat".