The letter is dated 17 June 412. It is considered to be the first testimony of the existence of the archives of the Church of Rome.
The name of Senecio is also mentioned in Letter 9 of Pope Siricius to Bishop Anysius of Thessalonica (Patrologia Latina 13, 1178), and in the letter of Pope Celestine I (AD 422-432) to the bishops of Illyricum. We do not know whether those passages relate to the Senecio mentioned here.