Eodem tempore petiit a Phocate principe templum, quod appellatur Pantheon, in quo fecit ecclesiam Sanctae Mariae semper Virginis, et omnium martyrum; in qua ecclesiae princeps multa bona obtulit (Anastasius vel potius Liber Pontificalis in Bonifacio IV., in Muratori, Script. Rerum Italicarum, tom. iii. P. i. p. 135).
According to the anonymous writer in Montfaucon, the Pantheon had been vowed by Agrippa to Cybele and Neptune, and was dedicated by Boniface IV., on the calends of November, to the Virgin,
quae est mater omnium sanctorum (p. 297, 298).