(Letters LXII., LXIII., LXIV., are the Emperor Theodosius’ answers (a) to Valentinian, (b) to Galla Placidia, and (c) to Licinia Eudoxia (assuring them of his orthodoxy and care for the Faith.)
Reproduced in full. Translation: Nicene and Post-Nicene Fathers, series 2, vol. 12 (Schaff and Wace, 1895), public domain (Public domain).
