confessions
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Confessio
Beneath the high altar is the confessio, with a kneeling statue of Pope Pius IX, and the Bethlehem Crypt, built to resemble the cave of the Nativity in Bethlehem.
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Confessio
At the foot of the baldacchino and papal altar is the sunken Confessio, a 17th-century chapel named in honor of the confession of St. Peter that led to his martyrdom here.