Nicene and Ante-Nicene Fathers, Ser. II, Vol I: The Life of Constantine with Orations of Constantine and Eusebius.: Chapter LIX
Chapter LIX.—Farther Description of the same Church.
Such was the magnificence with which the emperor was pleased to beautify this church. The building was surrounded by an open area of great extent, the four sides of which were terminated by porticos which enclosed the area and the church itself. Adjoining these porticos were ranges of stately chambers, with baths and promenades, and besides many apartments adapted to the use of those who had charge of the place.