I.

Attested by St Augustine. _Deus Creator omnium_, _Aeterne rerum conditor_, _Jam surgit hora tertia, Qua_ Referred to directly by St. Caelestin. _Veni Redemptor gentium._

These are the _undoubted_ hymns and the only hymns to be safely assigned to Ambrose.

_Aeterna Christi numera, et martyrum_, _Illuminans altissimus_, _Orabo mente dominum_, (from _Bis ternas horas_,) _Splendor paternae gloriae_.

These are the _probable_ hymns.