1. Constantius II (or perhaps Constans) / Votive Wreath
2. Id guess Constantius II, reverse is FEL TEMP REPARATIO - soldier spearing fallen horseman.
3. Constans, facing victories with wreaths, its a bit of a long legend so I cant remember it off the top of my head, begins VICTORIA...
4. Valens, GLORIA ROMANORVM, emperor draggig captive barbarian.
5. House of Constantine (cant be any more specific, I am quite confident its not Constantine), FEL TEMP again.
6. Another votive wreath. The legend spacings look to be Constans and the hair style is quite distinctively Constantius II or Constans, id be happy calling it Constans. Looks to read VOT XX MVLT XXX.