Origin of the name GRATIANUS.
Etymology of the
Meaning of the baby name GRATIANUS.
name meaning "favorable."
... Gratianus (favourable) rose
among the later Romans, and belonged to the father and to the son of the
Emperor Valens, and it left the Italians Graziano
for the benefit of Nerissa's merry husband. (History of Christian
Names, Yonge, 1884).