St. Joseph Calasanctius was born in Aragon in 1556. Having become a priest it was revealed to him; that he should teach the children of the poor. He founded the Order of the Poor Clerks Regular of the Pious Schools of the Mother of God. He was ever a devout pilgrim at the shrines of the martyrs, and daily visited the seven Churches of Rome, where he lived for fifty years. He died August 25, 1648.

(Source: The New Roman Missal, Rev. F. X. Lasance)