The uncertain degree of alliance or consanguinity, is
expressed by the words cognatus, consobrinus (see
Valesius ad Ammian, xxiii 3). The mother of Procopius might
be a sister of Basilina and Count Julian, the mother and
uncle of the Apostate. Ducange, Fam. Byzantin. p. 49.
The History Of The Decline and Fall
Of The Roman Empire—
Chapter 25