78. Zosimus (1. ii. [c. 17] p. 89) observes, that before the war the sister of Constantine had been betrothed to Licinius. According to the younger Victor [Epit. c. 39], Diocletian was invited to the nuptials; but having ventured to plead his age and infirmities, he received a second letter filled with reproaches for his supposed partiality to the cause of Maxentius and Maximin.