During the Gothic War of Justinian I he and Asinarius led an invasion into Dalmatia trying to capturing Salona.
[1] Mundus died however and his army retreated but so did the Goths.
[1] As the Byzantine army was reforming under Constantinianus Gripas led a Gothic force to Salona, successfully capturing it.
[1] After hearing of reports emphasising the large size of Byzantine force moving towards him he retreated.
[1] Seeing his position was desperate Gripas returned to Ravenna.