From Valentinian and Marcian.
(Announcing their election as Emperors 410 (a.d. 450), and asking his prayers that (per celebrandam synodum, te auctore), peace may be restored to the Church.)
Valentinian III. had been nominally Emperor of the West since 425, but his mothers (Galla Placidia) death this year compelled him to rule as well as have the name of ruler: almost simultaneously in the East the death of Theodisius II. brought to the front his sister Pulcheria and her soldier husband Marcian.