Note 034
The uncertain degree of alliance or consanguinity, is expressed by the words Ancient Greek 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 EmpireChapter 25