Paulus had sent Adelperga his copy of Eutropius in 774, but she complained about the absence of any treatment of the history of Christianity, so Paulus wrote his continuation, writing additions of the kind she requested as well as extending the account from the time of Valens to that of Justinianus.
Max Manitius, Geschichte der lateinischen Literatur des Mittelalters, C.H.Beck, 1974, p. 257.