There were a variety of maces in the Middle Ages. They differed in shape of the head (Studded Mace, Flanged Mace, Indian Shishpar), in metals used (wood, copper, bronze, iron), and in length (cavalry usually had longer maces) all of which would determine the final mace weight.
Chainmail armor was used by the last of the Romans, and by some of the invading Germanic tribes, including the Goths. Chainmail armor kept its popularity among the nobility of medieval Europe until, in the 13th century, plate armor began to be used instead, providing greater protection. This change was due to the fact, that the sharp tip of a sword or an arrow could pass through the chainmail.