In Medieval Europe, the double-edged sword was common. It was heavy whereas the single-edged sword was much lighter and cheaper.
A sword needed to have a sharp point, a good cross guard, and a balanced pommel.
A typical sword would be about 35 inches long, including the handle and weight about 2 or more pounds.
In book one of the Spirit Keeper series, A Wish Upon a Christmas Knight, I have a sword fight. When writing a fight scene, the author must think about 1. Characters 2. Action. 3. Outcome.
Sword being drawn from its scabbard. (Source: Wikipedia)
The heroic knight.